diff --git a/TODO.md b/TODO.md
index 911c38c..f0e19c3 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,15 +1,23 @@
 # TODO:
 
+## Current:
+- [x] UI: vertical layout (needs for email in registration)
+- [x] Nested groups
+- [x] Create dynamic map of elements IDs and their pointers
+- [x] Adapt modals to new value-forwarding method
+- [ ] Move text to the end if text in the input is larger, than field
+- [ ] More intuitive navigation between nested groups (by pressing left and right buttons)
+
 ## Features:
 - [x] Search files
 - [x] Correct spacing in the search bar
 - [x] Finish registration
-- [ ] UI: vertical layout (needs for email in registration)
 - [ ] Get rid of old notification mechanism
 - [ ] Privilege settings for files
 - [ ] Files removal
 - [ ] Encryption
 - [ ] UTF-8 support
+
 ## Fixes:
 - [ ] Check and fix registration and login
 - [ ] Hotkeys for buttons
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 073fdc7..5ff0c89 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -44,6 +44,7 @@ add_subdirectory(widget_core)
 add_subdirectory(widget)
 add_subdirectory(modals)
 add_subdirectory(lib)
+add_subdirectory(utils)
 
 target_link_libraries(zbbs-client-tui 
     PRIVATE
@@ -51,5 +52,6 @@ target_link_libraries(zbbs-client-tui
         widget
         modals
         bstring
+        utils
         ${CURSES_LIBRARIES}
 )
\ No newline at end of file
diff --git a/src/main.c b/src/main.c
index 6fe37e7..7d89c4f 100644
--- a/src/main.c
+++ b/src/main.c
@@ -44,6 +44,7 @@ int main(int argc, char **argv) {
   q_args->buf = malloc(INBUFSIZE);
   app->query_args = q_args;
   q_args->file_list_ui = init_file_list(&(app->left_win), &(app->right_win));
+  draw_file_list(q_args->file_list_ui);
 
   /* init client to connect to the server */
   app->params->sd = init_client();
diff --git a/src/modals/CMakeLists.txt b/src/modals/CMakeLists.txt
index 5634ebe..f1d75a5 100644
--- a/src/modals/CMakeLists.txt
+++ b/src/modals/CMakeLists.txt
@@ -3,7 +3,13 @@ add_library(modals STATIC)
 file(GLOB M_HEADERS "*.h")
 file(GLOB M_SOURCES "*.c")
 
-target_link_libraries(modals PRIVATE widget widget_core bstring)
+target_link_libraries(modals 
+    PRIVATE 
+        widget 
+        widget_core 
+        bstring
+        utils
+)
 
 target_sources(modals
     PRIVATE
@@ -16,4 +22,5 @@ target_sources(modals
 
 target_include_directories(modals PRIVATE "../widget")
 target_include_directories(modals PRIVATE "../widget_core")
-target_include_directories(modals PRIVATE "../lib/")
\ No newline at end of file
+target_include_directories(modals PRIVATE "../lib/")
+target_include_directories(widget PRIVATE "../utils/")
\ No newline at end of file
diff --git a/src/modals/alert.c b/src/modals/alert.c
index 7863d4f..8b23e04 100644
--- a/src/modals/alert.c
+++ b/src/modals/alert.c
@@ -25,7 +25,7 @@ void notification(const char *title, const char *message,
     return;
 
   group_el_init_t actions[] = {
-      {.type = w_button, .label = "OK", .is_default = 1}, {.type = w_end}};
+      {.type = w_button, .label = "OK", .is_default = true}, {.type = w_end}};
 
   dialogue_t *d = malloc(sizeof(dialogue_t));
 
@@ -33,7 +33,7 @@ void notification(const char *title, const char *message,
 
   d->w.callback = alert_cb;
   d->g_content = NULL;
-  d->g_action = init_group(&(d->win), &(d->w), actions, horizontal);
+  d->g_action = init_group(&(d->win), &(d->w), actions,&(d->id_map), horizontal, g_action);
 
   dialogue_init_active_id(d);
   d->color_scheme = color;
diff --git a/src/modals/ask_server_addr.c b/src/modals/ask_server_addr.c
index c9d5100..27f3451 100644
--- a/src/modals/ask_server_addr.c
+++ b/src/modals/ask_server_addr.c
@@ -1,15 +1,10 @@
 #include <stdint.h>
 #include <string.h>
 #include <ncurses.h>
-
-// #include "../app.h"
-// #include "../widget/dialogue.h"
-// #include "../widget/group.h"
-// #include "../widget/input.h"
-// #include "../widget/button.h"
-
 #include <widget.h>
+#include <widget_core.h>
 #include "../connection.h"
+#include "group.h"
 
 typedef struct {
   button_t *element;
@@ -17,19 +12,17 @@ typedef struct {
 } group_bt_t;
 
 void asa_modal_dialogue_callback(callback_args_t *args) {
-  int32_t response;
   callback_args_t d_args;
   app_t *app = args->app;
   dialogue_t *d = (dialogue_t *)app->active_widget;
   memcpy(&d_args, args, sizeof(callback_args_t));
   d_args.app = NULL;
-  d_args.resp_data = &response;
   d_args.element = app->active_widget;
   input_t *in_ip = d->g_content->elements[0].element;
   input_t *in_port = d->g_content->elements[1].element;
   dialogue_default_callback(&d_args);
-  if (response > -1) {
-    switch (response) {
+  if (d_args.resp_data.code == cbrp_val) {
+    switch (d_args.resp_data.val.val.num) {
     case 0:
       get_ip_port(app->params, in_ip->value, in_port->value);
       connect_to_server(app);
@@ -51,8 +44,8 @@ dialogue_t *init_asa_modal(app_t *app) {
       {.type = w_end}};
 
   group_el_init_t actions[] = {
-      {.type = w_button, .label = "Connect", .is_default = 1},
-      {.type = w_button, .label = "Cancel", .is_default = 0},
+      {.type = w_button, .label = "Connect", .is_default = true, .val.num = 1},
+      {.type = w_button, .label = "Cancel", .is_default = false, .val.num = 2},
       {.type = w_end}};
 
   init_dialogue(&(app->modal), "Connect to server",
@@ -60,8 +53,8 @@ dialogue_t *init_asa_modal(app_t *app) {
   dialogue_t *d = &(app->modal);
 
   d->w.callback = asa_modal_dialogue_callback;
-  d->g_content = init_group(&(d->win), &(d->w), content, horizontal);
-  d->g_action = init_group(&(d->win), &(d->w), actions, horizontal);
+  d->g_content = init_group(&(d->win), &(d->w), content,&(d->id_map), horizontal, g_content);
+  d->g_action = init_group(&(d->win), &(d->w), actions,&(d->id_map), horizontal, g_action);
 
   dialogue_init_active_id(d);
 
diff --git a/src/modals/download_pr.c b/src/modals/download_pr.c
index 214eed9..7d453b1 100644
--- a/src/modals/download_pr.c
+++ b/src/modals/download_pr.c
@@ -1,3 +1,4 @@
+#include "group.h"
 #include <widget.h>
 #include <ncurses.h>
 #include <stdint.h>
@@ -16,7 +17,7 @@ dialogue_t *init_dwn_pr_modal(app_t *app, bool is_upload) {
   sprintf(text, "%s file: %s", is_upload ? "Uploading" : "Downloading",
           is_upload ? app->query_args->file->name : app->file_args->f_selected.name);
   group_el_init_t actions[] = {
-      {.type = w_button, .label = "Cancel", .is_default = 1}, {.type = w_end}};
+      {.type = w_button, .label = "Cancel", .is_default = true, .val.num = 1}, {.type = w_end}};
 
   app->modal.w.parent_win = &app->win;
   init_dialogue(&(app->modal), is_upload ? "Upload" : "Download", text,
@@ -24,8 +25,8 @@ dialogue_t *init_dwn_pr_modal(app_t *app, bool is_upload) {
   dialogue_t *d = &(app->modal);
 
   d->w.callback = dwn_pr_modal_cb;
-  d->g_content = init_group(&(d->win), &(d->w), content, horizontal);
-  d->g_action = init_group(&(d->win), &(d->w), actions, horizontal);
+  d->g_content = init_group(&(d->win), &(d->w), content, &(d->id_map), horizontal, g_content);
+  d->g_action = init_group(&(d->win), &(d->w), actions, &(d->id_map), horizontal, g_action);
 
   app->query_args->progress_bar = d->g_content->elements[0].element;
   app->query_args->active_dialogue = d;
diff --git a/src/modals/login_credentials.c b/src/modals/login_credentials.c
index e844040..13f282f 100644
--- a/src/modals/login_credentials.c
+++ b/src/modals/login_credentials.c
@@ -1,3 +1,4 @@
+#include "group.h"
 #include <ncurses.h>
 #include <stdint.h>
 #include <stdlib.h>
@@ -12,20 +13,18 @@ typedef struct {
 } group_bt_t;
 
 void init_login_credentials_modal_cb(callback_args_t *args) {
-  int32_t response;
   callback_args_t d_args;
   app_t *app = args->app;
   dialogue_t *d = (dialogue_t *)app->active_widget;
   memcpy(&d_args, args, sizeof(callback_args_t));
   d_args.app = NULL;
-  d_args.resp_data = &response;
   d_args.element = app->active_widget;
   input_t *in_name = d->g_content->elements[0].element;
   input_t *in_pass = d->g_content->elements[1].element;
   dialogue_default_callback(&d_args);
-  if (response > -1) {
-    switch (response) {
-    case 0:
+  if (d_args.resp_data.code == cbrp_val) {
+    switch (d_args.resp_data.val.val.num) {
+    case 1:
       app->params->uname = malloc(in_name->value_len + 1);
       app->params->pass = malloc(in_pass->value_len + 1);
       strncpy(app->params->uname, in_name->value, in_name->value_len);
@@ -37,7 +36,7 @@ void init_login_credentials_modal_cb(callback_args_t *args) {
       d->needs_destroy = true;
       print_bars(app);
       break;
-    case 1:
+    case 2:
       app->query_args->state = S_ASK_LOGIN_TYPE;
       app->modal.needs_destroy = true;
     }
@@ -56,8 +55,8 @@ dialogue_t *init_login_credentials_modal(app_t *app) {
       {.type = w_end}};
 
   group_el_init_t actions[] = {
-      {.type = w_button, .label = "Login", .is_default = true},
-      {.type = w_button, .label = "Cancel", .is_default = false},
+      {.type = w_button, .label = "Login", .is_default = true, .val.num = 1},
+      {.type = w_button, .label = "Cancel", .is_default = false, .val.num = 2},
       {.type = w_end}};
 
   init_dialogue(&(app->modal), "Login", "Your login credentials",
@@ -65,8 +64,8 @@ dialogue_t *init_login_credentials_modal(app_t *app) {
   dialogue_t *d = &(app->modal);
 
   d->w.callback = init_login_credentials_modal_cb;
-  d->g_content = init_group(&(d->win), &(d->w), content, horizontal);
-  d->g_action = init_group(&(d->win), &(d->w), actions, horizontal);
+  d->g_content = init_group(&(d->win), &(d->w), content, &(d->id_map), horizontal, g_content);
+  d->g_action = init_group(&(d->win), &(d->w), actions, &(d->id_map), horizontal, g_action);
 
   dialogue_init_active_id(d);
 
diff --git a/src/modals/login_option.c b/src/modals/login_option.c
index 439b807..09d4f69 100644
--- a/src/modals/login_option.c
+++ b/src/modals/login_option.c
@@ -1,3 +1,4 @@
+#include "group.h"
 #include <ncurses.h>
 #include <stdint.h>
 #include <stdlib.h>
@@ -12,30 +13,28 @@ typedef struct {
 } group_bt_t;
 
 void login_modal_option_cb(callback_args_t *args) {
-  int32_t response;
   callback_args_t d_args;
   app_t *app = args->app;
   dialogue_t *d = (dialogue_t *)app->active_widget;
   memcpy(&d_args, args, sizeof(callback_args_t));
   d_args.app = NULL;
-  d_args.resp_data = &response;
   d_args.element = app->active_widget;
   dialogue_default_callback(&d_args);
-  if (response > -1) {
-    switch (response) {
-    case 0:
+  if (d_args.resp_data.code == cbrp_val) {
+    switch (d_args.resp_data.val.val.num) {
+    case 1:
       d->needs_destroy = true;
       app->params->uname = malloc(sizeof "anonymous");
       strcpy(app->params->uname, "anonymous");
-      write(app->params->sd, app->params->uname, sizeof "anonymous"-1);
+      write(app->params->sd, app->params->uname, sizeof "anonymous" - 1);
       app->query_args->state = S_WAIT_SERVER;
       print_bars(app);
       break;
-    case 1:
+    case 2:
       d->needs_destroy = true;
       app->query_args->state = S_ASK_LOGIN_USER;
       break;
-    case 2:
+    case 3:
       d->needs_destroy = true;
       app->query_args->state = S_ASK_REGISTER;
       break;
@@ -46,18 +45,17 @@ void login_modal_option_cb(callback_args_t *args) {
 dialogue_t *init_login_option_modal(app_t *app) {
   if (app == NULL)
     return NULL;
-  group_el_init_t children[] = {{.type = w_button, .label = "Anonymous"},
-                                {.type = w_button, .label = "User"},
-                                {.type = w_button, .label = "Register"},
+  group_el_init_t children[] = {{.type = w_button, .label = "Anonymous", .val.num = 1},
+                                {.type = w_button, .label = "User", .val.num = 2},
+                                {.type = w_button, .label = "Register", .val.num = 3},
                                 {.type = w_end}};
 
   init_dialogue(&(app->modal), "Login",
                 "Select your login "
                 "option",
                 &(app->coordinates));
-  app->modal.g_action =
-      init_group(&(app->modal.win), &(app->modal.w), children,
-                 horizontal);
+  app->modal.g_action = init_group(&(app->modal.win), &(app->modal.w), children,
+                                   &(app->modal.id_map), horizontal, g_action);
   app->modal.w.callback = login_modal_option_cb;
   dialogue_init_active_id(&(app->modal));
 
diff --git a/src/modals/notification.c b/src/modals/notification.c
index f0cdd05..a4988b3 100644
--- a/src/modals/notification.c
+++ b/src/modals/notification.c
@@ -1,3 +1,4 @@
+#include "group.h"
 #include <ncurses.h>
 #include <stdint.h>
 #include <stdlib.h>
@@ -5,21 +6,17 @@
 
 #include <widget.h>
 
-/* TODO: get rid of this mechanism */
-
 typedef struct {
   button_t *element;
   enum w_type type;
 } group_bt_t;
 
 void init_notification_modal_cb(callback_args_t *args) {
-  int32_t response;
   callback_args_t d_args;
   app_t *app = args->app;
   dialogue_t *d = (dialogue_t *)app->active_widget;
   memcpy(&d_args, args, sizeof(callback_args_t));
   d_args.app = NULL;
-  d_args.resp_data = &response;
   d_args.element = app->active_widget;
   dialogue_default_callback(&d_args);
 
@@ -32,7 +29,8 @@ dialogue_t *init_notification_modal(app_t *app) {
     return NULL;
 
   group_el_init_t actions[] = {
-      {.type = w_button, .label = "OK", .is_default = 1}, {.type = w_end}};
+      {.type = w_button, .label = "OK", .is_default = true, .val.num = 1},
+      {.type = w_end}};
 
   init_dialogue(&(app->modal), "Notification", app->query_args->notification,
                 &(app->coordinates));
@@ -43,7 +41,8 @@ dialogue_t *init_notification_modal(app_t *app) {
 
   d->w.callback = init_notification_modal_cb;
   d->g_content = NULL;
-  d->g_action = init_group(&(d->win), &(d->w), actions, horizontal);
+  d->g_action = init_group(&(d->win), &(d->w), actions, &(d->id_map),
+                           horizontal, g_action);
 
   dialogue_init_active_id(d);
 
diff --git a/src/modals/register.c b/src/modals/register.c
index bac1657..0fd619b 100644
--- a/src/modals/register.c
+++ b/src/modals/register.c
@@ -8,6 +8,8 @@
 #include <widget.h>
 
 #include "alert.h"
+#include "group.h"
+#include "widget_core.h"
 
 typedef struct {
   button_t *element;
@@ -17,21 +19,23 @@ typedef struct {
 void init_register_modal_cb(callback_args_t *args) {
   char query[256];
   int32_t qlen = 0;
-  int32_t response;
   callback_args_t d_args;
   app_t *app = args->app;
   dialogue_t *d = (dialogue_t *)app->active_widget;
   memcpy(&d_args, args, sizeof(callback_args_t));
   d_args.app = NULL;
-  d_args.resp_data = &response;
   d_args.element = app->active_widget;
-  input_t *in_name = d->g_content->elements[0].element;
-  input_t *in_pass = d->g_content->elements[1].element;
-  input_t *in_pass_r = d->g_content->elements[2].element;
+  group_t *g_email_user = d->g_content->elements[0].element;
+  group_t *g_passwords = d->g_content->elements[1].element;
+  input_t *in_name = g_email_user->elements[0].element;
+  input_t *in_email = g_email_user->elements[1].element;
+  input_t *in_pass = g_passwords->elements[0].element;
+  input_t *in_pass_r = g_passwords->elements[1].element;
   dialogue_default_callback(&d_args);
-  if (response > -1) {
-    switch (response) {
-    case 0:
+  if (d_args.resp_data.code == cbrp_val &&
+      d_args.resp_data.val.type == val_num) {
+    switch (d_args.resp_data.val.val.num) {
+    case 1:
       if (strcmp(in_pass->value, in_pass_r->value)) {
         alert("Your passwords do not match");
         in_pass->value[0] = '\0';
@@ -46,12 +50,12 @@ void init_register_modal_cb(callback_args_t *args) {
       app->params->uname[in_name->value_len] = 0;
       strncpy(app->params->pass, in_pass->value, in_pass->value_len);
       app->params->pass[in_pass->value_len] = 0;
-      sprintf(query, "register %s %s\n%n", app->params->uname, app->params->pass,
-              &qlen);
+      sprintf(query, "register %s %s %*s\n%n", app->params->uname,
+              app->params->pass, (int) in_email->value_len, in_email->value, &qlen);
       write(app->params->sd, query, qlen);
       app->query_args->state = S_WAIT_REGISTER_CONFIRMATION;
       break;
-    case 1:
+    case 2:
       app->query_args->state = S_ASK_LOGIN_TYPE;
       app->modal.needs_destroy = true;
     }
@@ -61,21 +65,29 @@ void init_register_modal_cb(callback_args_t *args) {
 dialogue_t *init_register_modal(app_t *app) {
   if (app == NULL)
     return NULL;
+  group_el_init_t content_name_email[] = {
+      {.type = w_input, .label = "Username", .length = 18},
+      {.type = w_input, .label = "Email", .length = 18},
+      {.type = w_end}};
+
+  group_el_init_t content_pass[] = {{.type = w_input,
+                                     .label = "Password",
+                                     .length = 18,
+                                     .is_hidden_value = true},
+                                    {.type = w_input,
+                                     .label = "Password (repeat)",
+                                     .length = 18,
+                                     .is_hidden_value = true},
+                                    {.type = w_end}};
+
   group_el_init_t content[] = {
-      {.type = w_input, .label = "Username", .length = 15},
-      {.type = w_input,
-       .label = "Password",
-       .length = 15,
-       .is_hidden_value = true},
-      {.type = w_input,
-       .label = "Password (repeat)",
-       .length = 15,
-       .is_hidden_value = true},
+      {.type = w_group, .direction = vertical, .children = content_name_email},
+      {.type = w_group, .direction = vertical, .children = content_pass},
       {.type = w_end}};
 
   group_el_init_t actions[] = {
-      {.type = w_button, .label = "Register", .is_default = true},
-      {.type = w_button, .label = "Cancel", .is_default = false},
+      {.type = w_button, .label = "Register", .is_default = true, .val.num = 1},
+      {.type = w_button, .label = "Cancel", .is_default = false, .val.num = 2},
       {.type = w_end}};
 
   init_dialogue(&(app->modal), "Credentials", "There is information needed",
@@ -83,8 +95,10 @@ dialogue_t *init_register_modal(app_t *app) {
   dialogue_t *d = &(app->modal);
 
   d->w.callback = init_register_modal_cb;
-  d->g_content = init_group(&(d->win), &(d->w), content, horizontal);
-  d->g_action = init_group(&(d->win), &(d->w), actions, horizontal);
+  d->g_content = init_group(&(d->win), &(d->w), content, &(d->id_map),
+                            horizontal, g_content);
+  d->g_action = init_group(&(d->win), &(d->w), actions, &(d->id_map),
+                           horizontal, g_action);
 
   dialogue_init_active_id(d);
 
diff --git a/src/modals/server_message.c b/src/modals/server_message.c
index 9c312b4..e7fb528 100644
--- a/src/modals/server_message.c
+++ b/src/modals/server_message.c
@@ -1,3 +1,4 @@
+#include "group.h"
 #include <ncurses.h>
 #include <stdint.h>
 #include <stdlib.h>
@@ -11,18 +12,16 @@ typedef struct {
 } group_bt_t;
 
 void server_message_modal_cb(callback_args_t *args) {
-  int32_t response;
   callback_args_t d_args;
   app_t *app = args->app;
   dialogue_t *d = (dialogue_t *)app->active_widget;
   memcpy(&d_args, args, sizeof(callback_args_t));
   d_args.app = NULL;
-  d_args.resp_data = &response;
   d_args.element = app->active_widget;
   dialogue_default_callback(&d_args);
-  if (response > -1) {
-    switch (response) {
-    case 0:
+  if (d_args.resp_data.code == cbrp_val) {
+    switch (d_args.resp_data.val.val.num) {
+    case 1:
       d->needs_destroy = true;
       /* TODO: macros */
       free(app->query_args->server_message.text);
@@ -39,12 +38,12 @@ void *init_server_message_modal(app_t *app) {
   if (app == NULL)
     return NULL;
   group_el_init_t children[] = {
-      {.type = w_button, .label = "OK", .is_default = 1}, {.type = w_end}};
+      {.type = w_button, .label = "OK", .is_default = true, .val.num = 1}, {.type = w_end}};
 
   init_dialogue(&(app->modal), "Server response",
                 app->query_args->server_message.text, &(app->coordinates));
   app->modal.g_action =
-      init_group(&(app->modal.win), &(app->modal.w), children, horizontal);
+      init_group(&(app->modal.win), &(app->modal.w), children, &(app->modal.id_map), horizontal, g_action);
   app->modal.w.callback = server_message_modal_cb;
   dialogue_init_active_id(&(app->modal));
 
diff --git a/src/modals/upload_dialogue.c b/src/modals/upload_dialogue.c
index ea9fbd3..f1b33df 100644
--- a/src/modals/upload_dialogue.c
+++ b/src/modals/upload_dialogue.c
@@ -1,34 +1,35 @@
 #include "../file_processor.h"
-#include <widget.h>
+#include "group.h"
 #include <ncurses.h>
 #include <stdint.h>
 #include <string.h>
+#include <widget.h>
 
 void upload_dialogue_modal_cb(callback_args_t *args) {
-  int32_t response = -1;
   callback_args_t d_args;
   app_t *app = args->app;
   dialogue_t *d = (dialogue_t *)app->active_widget;
   memcpy(&d_args, args, sizeof(callback_args_t));
   d_args.app = NULL;
-  d_args.resp_data = &response;
   d_args.element = app->active_widget;
   dialogue_default_callback(&d_args);
   ui_fs_file_list_t *fui =
       (ui_fs_file_list_t *)d->g_content->elements[0].element;
-  switch (response) {
-  case 0:
-    app->query_args->state = S_WAIT_SERVER;
-    d->needs_destroy = true;
-    break;
-  case 1:
-    file_upload_open(fui->d_path, fui->current->name, app->query_args);
-    d->needs_destroy = true;
-    app->query_args->state = S_UPLOAD_PARAMS;
-    break;
-  case -2:
-    d->needs_destroy = true;
-    app->query_args->state = WAIT_CLIENT;
+  if (d_args.resp_data.code == cbrp_val) {
+    switch (d_args.resp_data.val.val.num) {
+    case 0:
+      app->query_args->state = S_WAIT_SERVER;
+      d->needs_destroy = true;
+      break;
+    case 1:
+      file_upload_open(fui->d_path, fui->current->name, app->query_args);
+      d->needs_destroy = true;
+      app->query_args->state = S_UPLOAD_PARAMS;
+      break;
+    case -2:
+      d->needs_destroy = true;
+      app->query_args->state = WAIT_CLIENT;
+    }
   }
 }
 
@@ -41,7 +42,7 @@ dialogue_t *init_upload_dialogue_modal(app_t *app) {
       {.type = w_end}};
 
   group_el_init_t actions[] = {
-      {.type = w_button, .label = "Cancel", .is_default = 0}, {.type = w_end}};
+      {.type = w_button, .label = "Cancel", .is_default = false, .val.num = 0}, {.type = w_end}};
 
   app->modal.w.parent_win = &app->win;
   init_dialogue(&(app->modal), "Upload new file", "Enter essential data",
@@ -49,8 +50,10 @@ dialogue_t *init_upload_dialogue_modal(app_t *app) {
   dialogue_t *d = &(app->modal);
 
   d->w.callback = upload_dialogue_modal_cb;
-  d->g_content = init_group(&(d->win), &(d->w), content, horizontal);
-  d->g_action = init_group(&(d->win), &(d->w), actions, horizontal);
+  d->g_content = init_group(&(d->win), &(d->w), content, &(d->id_map),
+                            horizontal, g_content);
+  d->g_action = init_group(&(d->win), &(d->w), actions, &(d->id_map),
+                           horizontal, g_action);
 
   app->query_args->active_dialogue = d;
 
diff --git a/src/modals/upload_props_dialogue.c b/src/modals/upload_props_dialogue.c
index dc7be6d..def81ec 100644
--- a/src/modals/upload_props_dialogue.c
+++ b/src/modals/upload_props_dialogue.c
@@ -1,3 +1,4 @@
+#include "group.h"
 #include <widget.h>
 #include <ncurses.h>
 #include <stdint.h>
@@ -7,20 +8,18 @@
 #include <unistd.h>
 
 void upload_props_dialogue_modal_cb(callback_args_t *args) {
-  int32_t response = -1;
   callback_args_t d_args;
   app_t *app = args->app;
   dialogue_t *d = (dialogue_t *)app->active_widget;
   memcpy(&d_args, args, sizeof(callback_args_t));
   d_args.app = NULL;
-  d_args.resp_data = &response;
   d_args.element = app->active_widget;
   dialogue_default_callback(&d_args);
   char query[256];
   int32_t query_len = 0;
   input_t *desc_input = (input_t *)d->g_content->elements[0].element;
-  if (response > -1) {
-    switch (response) {
+  if (d_args.resp_data.code == cbrp_val) {
+    switch (d_args.resp_data.val.val.num) {
     case 0:
       query_len =
           sprintf(query, "file upload \"%s\" %zu 1\n",
@@ -53,8 +52,8 @@ dialogue_t *init_upload_props_dialogue_modal(app_t *app) {
       {.type = w_end}};
 
   group_el_init_t actions[] = {
-      {.type = w_button, .label = "Upload", .is_default = 1},
-      {.type = w_button, .label = "Cancel", .is_default = 0},
+      {.type = w_button, .label = "Upload", .is_default = true},
+      {.type = w_button, .label = "Cancel", .is_default = false},
       {.type = w_end},
   };
 
@@ -64,8 +63,8 @@ dialogue_t *init_upload_props_dialogue_modal(app_t *app) {
   dialogue_t *d = &(app->modal);
 
   d->w.callback = upload_props_dialogue_modal_cb;
-  d->g_content = init_group(&(d->win), &(d->w), content, horizontal);
-  d->g_action = init_group(&(d->win), &(d->w), actions, horizontal);
+  d->g_content = init_group(&(d->win), &(d->w), content, &(d->id_map), horizontal, g_content);
+  d->g_action = init_group(&(d->win), &(d->w), actions, &(d->id_map), horizontal, g_action);
 
   app->query_args->active_dialogue = d;
 
diff --git a/src/query.c b/src/query.c
index 6c6fd15..58e5558 100644
--- a/src/query.c
+++ b/src/query.c
@@ -16,7 +16,6 @@
 #include <time.h>
 #include <unistd.h>
 
-#include "app.h"
 #include "connection.h"
 #include "draw_modal.h"
 #include "file_processor.h"
@@ -25,6 +24,7 @@
 #include "server.h"
 #include "types.h"
 #include "widget/app.h"
+#include "widget_core/widget_core.h"
 
 static void wait_side(app_t *app);
 void user_request_description(query_args_t *q_args);
@@ -45,8 +45,10 @@ void query_loop(app_t *app) {
   size_t qlen;
   int sr;
   static file_args_t file_args;
-  callback_args_t d_args = {
-      .app = app, .element = NULL, .data = NULL, .resp_data = NULL};
+  callback_args_t d_args = {.app = app,
+                            .element = NULL,
+                            .data = NULL,
+                            .resp_data.code = cbrc_none};
 
   init_file_args(&file_args);
   query_args->sd = sd;
diff --git a/src/utils/CMakeLists.txt b/src/utils/CMakeLists.txt
new file mode 100644
index 0000000..7c04195
--- /dev/null
+++ b/src/utils/CMakeLists.txt
@@ -0,0 +1,15 @@
+add_library(utils STATIC)
+
+file(GLOB M_HEADERS "*.h")
+file(GLOB M_SOURCES "*.c")
+
+list(REMOVE_ITEM M_HEADERS "utils.h")
+
+target_sources(utils
+    PRIVATE
+        ${M_SOURCES}
+    PUBLIC
+        FILE_SET HEADERS
+        FILES
+            ${M_HEADERS}
+)
diff --git a/src/utils/d_array.c b/src/utils/d_array.c
new file mode 100644
index 0000000..979a6fc
--- /dev/null
+++ b/src/utils/d_array.c
@@ -0,0 +1,34 @@
+
+#include "d_array.h"
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+void init_d_arr_ptr(d_array_ptr_t *arr, int64_t init_capacity) {
+  arr->capacity = init_capacity;
+  arr->length = 0;
+  arr->arr = malloc(sizeof(void *) * init_capacity);
+  arr->fist_el = NULL;
+  arr->last_el = NULL;
+  memset(arr->arr, 0, init_capacity);
+}
+
+void add_d_arr_ptr(d_array_ptr_t *arr, void *ptr, int64_t idx) {
+  int64_t new_capacity = idx * 2;
+  if (idx > arr->capacity - 1) {
+    arr->arr = realloc(arr->arr, new_capacity);
+    memset(arr->arr+arr->capacity, 0, arr->capacity - new_capacity);
+    arr->capacity = new_capacity;
+  }
+  if (arr->fist_el == NULL) arr->fist_el = ptr;
+  arr->last_el = ptr;
+  arr->arr[idx] = ptr;
+  arr->length = idx+1;
+}
+
+void free_d_arr(d_array_ptr_t *arr) {
+  arr->capacity = 0;
+  arr->length = 0;
+  free(arr->arr);
+  arr->arr = NULL;
+}
\ No newline at end of file
diff --git a/src/utils/d_array.h b/src/utils/d_array.h
new file mode 100644
index 0000000..786896c
--- /dev/null
+++ b/src/utils/d_array.h
@@ -0,0 +1,17 @@
+#ifndef D_ARRAY_H
+#define D_ARRAY_H
+/* Dynamic array of numbers */
+#include <stdint.h>
+typedef struct d_array_ptr_t {
+  int64_t capacity;
+  int64_t length;
+  void **arr;
+  void *fist_el;
+  void *last_el;
+} d_array_ptr_t;
+
+void init_d_arr_ptr(d_array_ptr_t *arr, int64_t init_capacity);
+void add_d_arr_ptr(d_array_ptr_t *arr, void *ptr, int64_t idx);
+void free_d_arr(d_array_ptr_t *arr);
+
+#endif
\ No newline at end of file
diff --git a/src/utils/utils.h b/src/utils/utils.h
new file mode 100644
index 0000000..be68e58
--- /dev/null
+++ b/src/utils/utils.h
@@ -0,0 +1,4 @@
+#ifndef D_UTILS_H
+#define D_UTILS_H
+#include "d_array.h"
+#endif
\ No newline at end of file
diff --git a/src/widget/CMakeLists.txt b/src/widget/CMakeLists.txt
index 978176e..fcaa36f 100644
--- a/src/widget/CMakeLists.txt
+++ b/src/widget/CMakeLists.txt
@@ -18,7 +18,9 @@ target_link_libraries(widget
     PRIVATE
         bstring
         widget_core
+        utils
 )
 
 target_include_directories(widget PRIVATE "../widget_core")
-target_include_directories(widget PRIVATE "../lib/")
\ No newline at end of file
+target_include_directories(widget PRIVATE "../lib/")
+target_include_directories(widget PRIVATE "../utils/")
\ No newline at end of file
diff --git a/src/widget/app.h b/src/widget/app.h
index 79d84c3..1714e0b 100644
--- a/src/widget/app.h
+++ b/src/widget/app.h
@@ -10,7 +10,6 @@
 
 typedef enum {
   modal_color_pair = 3,
-  modal_border_color_pair = 4,
 } color;
 
 typedef enum {
diff --git a/src/widget/button.c b/src/widget/button.c
index 8852d75..246c581 100644
--- a/src/widget/button.c
+++ b/src/widget/button.c
@@ -21,8 +21,16 @@ button_t *init_button(WINDOW **win, widget_t *w_parent, char *label) {
 int32_t draw_button(button_t *btn, uint32_t active_id) {
   char title[DIALOGUE_TITLE + 6];
   WINDOW *win = *(btn->w.parent_win);
-  uint32_t margin_y = btn->w.m_y + btn->w.w_parent->m_y;
-  uint32_t margin_x = btn->w.m_x + btn->w.w_parent->m_x;
+  uint32_t margin_y = btn->w.m_y;
+  uint32_t margin_x = btn->w.m_x;
+
+  widget_t *w_par = btn->w.w_parent;
+
+  while (w_par->parent_win == btn->w.parent_win) {
+    margin_y += w_par->m_y;
+    margin_x += w_par->m_x;
+    w_par = w_par->w_parent;
+  }
 
   if (btn->w.id == active_id) {
     sprintf(title, "[< %s >]", btn->w.title);
diff --git a/src/widget/button.h b/src/widget/button.h
index 57f88dc..aacb19d 100644
--- a/src/widget/button.h
+++ b/src/widget/button.h
@@ -1,7 +1,6 @@
 #ifndef BUTTON_H
 #define BUTTON_H
 
-#include "../main.h"
 #include <widget_core.h>
 #include <stdint.h>
 
diff --git a/src/widget/dialogue.c b/src/widget/dialogue.c
index 8de483f..7cdb10a 100644
--- a/src/widget/dialogue.c
+++ b/src/widget/dialogue.c
@@ -8,26 +8,42 @@
 #include "file_list.h"
 #include "group.h"
 #include "input.h"
+#include "widget_core.h"
 
-#define INCR_ACTIVE_ID(d, current, next)                                       \
-  if (d->active.id != d->current->last_id) {                                   \
-    d->active.id = d->active.id + 1;                                           \
-  } else if (d->next != NULL) {                                                \
-    d->active.id = d->next->first_id;                                          \
-    d->active.type = next;                                                     \
-  } else {                                                                     \
-    d->active.id = d->current->first_id;                                       \
+void incr_active_id(dialogue_t *d) {
+  group_el_t *active_el = NULL;
+  while (true) {
+    for (int i = d->active_el->id + 1;
+         active_el == NULL && d->id_map.length > i; i++) {
+      active_el = d->id_map.arr[i];
+    }
+    d->active_el = active_el;
+    if (d->active_el == NULL) {
+      d->active_el = d->id_map.fist_el;
+      break;
+    } else if (d->active_el->type != w_box && d->active_el->type != w_group) {
+      break;
+    }
+    active_el = NULL;
   }
+}
 
-#define DECR_ACTIVE_ID(d, current, next)                                       \
-  if (d->active.id != d->current->first_id) {                                  \
-    d->active.id = d->active.id - 1;                                           \
-  } else if (d->next != NULL) {                                                \
-    d->active.id = d->next->last_id;                                           \
-    d->active.type = next;                                                     \
-  } else {                                                                     \
-    d->active.id = d->current->last_id;                                        \
+void decr_active_id(dialogue_t *d) {
+  group_el_t *active_el = NULL;
+  while (true) {
+    for (int i = d->active_el->id - 1; active_el == NULL && i > 0; i--) {
+      active_el = d->id_map.arr[i];
+    }
+    d->active_el = active_el;
+    if (d->active_el == NULL) {
+      d->active_el = d->id_map.last_el;
+      break;
+    } else if (d->active_el->type != w_box && d->active_el->type != w_group) {
+      break;
+    }
+    active_el = NULL;
   }
+}
 
 #define CH_GROUP(d, current, next)                                             \
   {                                                                            \
@@ -42,118 +58,78 @@
     }                                                                          \
   }
 
-widget_t *get_active_widget(dialogue_t *d) {
-  group_t *g;
-  if (d->active.type == g_action) {
-    g = d->g_action;
-  } else {
-    g = d->g_content;
-  }
-  widget_t *w = (widget_t *)g->elements[d->active.id - g->first_id].element;
-  return w;
-}
-
 void dialogue_default_callback(callback_args_t *args) {
   dialogue_t *d = (void *)args->element;
   int32_t key = *((int32_t *)args->data);
   callback_args_t new_args;
-  int32_t *resp_value = (int32_t *)args->resp_data;
   memcpy(&new_args, args, sizeof(callback_args_t));
-  new_args.active_id = d->active.id;
+  new_args.active_el = d->active_el;
   int32_t diff;
   d->needs_update = true;
   input_t *input;
   widget_t *widget;
   switch (key) {
   case '\t':
-    if (d->active.type == g_content) {
-      INCR_ACTIVE_ID(d, g_content, g_action);
-    } else if (d->active.type == g_action) {
-      INCR_ACTIVE_ID(d, g_action, g_content);
-    }
-    *resp_value = -1;
+    incr_active_id(d);
+    args->resp_data.code = cbrc_none;
     break;
   case '\33': /* Esc key */
-    *resp_value = -2;
+    args->resp_data.code = cbrp_val;
+    args->resp_data.val.val.num = -2;
     break;
   case KEY_RIGHT:
-    if (d->active.type == g_content) {
-      if (d->g_content->elements[d->active.id - d->g_content->first_id].type ==
-          w_input) {
-        input = d->g_content->elements[d->active.id - d->g_content->first_id]
-                    .element;
-        if (input->cur_pos > 0) {
-          input->cur_pos -= 1;
-        }
-      } else {
-        INCR_ACTIVE_ID(d, g_content, g_action);
-      }
-    } else if (d->active.type == g_action) {
-      INCR_ACTIVE_ID(d, g_action, g_content);
-    }
-    *resp_value = -1;
+    incr_active_id(d);
+    args->resp_data.code = cbrc_none;
     break;
   case KEY_LEFT:
-    if (d->active.type == g_content) {
-      if (d->g_content->elements[d->active.id - d->g_content->first_id].type ==
-          w_input) {
-        input = d->g_content->elements[d->active.id - d->g_content->first_id]
-                    .element;
-        if (input->value_len > input->cur_pos) {
-          input->cur_pos += 1;
-        }
-      } else {
-        DECR_ACTIVE_ID(d, g_content, g_action);
-      }
-    } else if (d->active.type == g_action) {
-      DECR_ACTIVE_ID(d, g_action, g_content);
-    }
-    *resp_value = -1;
+    decr_active_id(d);
+    args->resp_data.code = cbrc_none;
     break;
   case '\n':
-    widget = get_active_widget(d);
+    widget = (widget_t *)d->active_el->element;
     if (widget->callback != NULL) { /* Existing callback case */
       new_args.element = widget;
       widget->callback(&new_args);
       break;
     } /* Default cases */
-    if (d->active.type == g_action) {
+    if (d->active_el->g_type == g_action) {
       new_args.element = d->g_action;
       group_default_callback(&new_args);
+      mempcpy(&(args->resp_data), &(new_args.resp_data),
+              sizeof(new_args.resp_data));
     } else if (d->g_action != NULL) {
       for (int i = 0; i < d->g_action->count; i++) {
         if (d->g_action->elements[i].is_default) {
-          *resp_value = i;
+          args->resp_data.code = cbrp_val;
+          args->resp_data.val.val.num = i;
           return;
         }
       }
     } else {
-      /* TODO: temp solution, improve */
-      *resp_value = d->active.id - d->g_content->first_id;
+      args->resp_data.code = cbrp_val;
+      args->resp_data.val.val.num = d->active_el->idx;
       return;
     }
     break;
   case KEY_UP:
-    if (d->g_content->elements[d->active.id - d->g_content->first_id].type ==
-        w_fs_file_list) {
+    if (d->active_el->type == w_fs_file_list) {
       new_args.element = d->g_content;
       group_default_callback(&new_args);
     } else {
-      CH_GROUP(d, g_action, g_content);
+      /* CH_GROUP(d, g_action, g_content); */
     }
     break;
   case KEY_DOWN:
-    if (d->g_content->elements[d->active.id - d->g_content->first_id].type ==
-        w_fs_file_list) {
+    if (d->active_el->type == w_fs_file_list) {
       new_args.element = d->g_content;
       group_default_callback(&new_args);
     } else {
-      CH_GROUP(d, g_content, g_action);
+      /* CH_GROUP(d, g_content, g_action); */
     }
     break;
   default:
     /* run callback function */
-    if (d->active.type == g_content) {
+    if (d->active_el->g_type == g_content) {
       new_args.element = d->g_content;
     } else {
       new_args.element = d->g_action;
@@ -178,67 +154,42 @@ void init_dialogue(dialogue_t *dialogue, const char title[], const char text[],
   strcpy(dialogue->w.title, title);
   t_size = strlen(text);
   strcpy(dialogue->text, text);
+  init_d_arr_ptr(&(dialogue->id_map), MAX_IDS);
   /* trim the last new line symbol */
-  if (t_size && dialogue->text[t_size-1] == '\n') dialogue->text[t_size-1] = '\0';
+  if (t_size && dialogue->text[t_size - 1] == '\n')
+    dialogue->text[t_size - 1] = '\0';
+}
+
+int group_init_active_id(group_t *g, dialogue_t *d) {
+  enum w_type wt;
+
+  for (int i = 0; i < g->count; i++) {
+    wt = g->elements[i].type;
+    if (wt == w_button || wt == w_input ||
+        wt == w_fs_file_list) { /* Add here new types */
+      d->active_el = g->elements + i;
+      return 1;
+    } else if (wt == w_group) {
+      group_t *child_g = g->elements[i].element;
+      return group_init_active_id(child_g, d);
+    }
+  }
+  return 0;
 }
 
 void dialogue_init_active_id(dialogue_t *dialogue) {
-  enum w_type widget_type;
-
   if (dialogue->g_content != NULL) {
-    for (int i = 0; i < dialogue->g_content->count; i++) {
-      widget_type = dialogue->g_content->elements[i].type;
-      if (widget_type == w_button || widget_type == w_input ||
-          widget_type == w_fs_file_list) { /* Add here new types */
-        dialogue->active.type = g_content;
-        widget_t *w = (widget_t *)dialogue->g_content->elements[i].element;
-        dialogue->active.id = w->id;
-        return;
-      }
+    if (group_init_active_id(dialogue->g_content, dialogue)) {
+      return;
     }
   }
   if (dialogue->g_action != NULL) {
-    for (int i = 0; i < dialogue->g_action->count; i++) {
-      widget_type = dialogue->g_action->elements[i].type;
-      if (widget_type == w_button || widget_type == w_input ||
-          widget_type == w_fs_file_list) {
-        dialogue->active.type = g_action;
-        widget_t *w = (widget_t *)dialogue->g_action->elements[i].element;
-        dialogue->active.id = w->id;
-        return;
-      }
+    if (group_init_active_id(dialogue->g_action, dialogue)) {
+      return;
     }
   }
 }
 
-// void dialogue_init_active_id(dialogue_t *dialogue) {
-//   enum w_type widget_type;
-
-//   if (dialogue->g_content != NULL) {
-//     for (int i = 0; i < dialogue->g_content->count; i++) {
-//       widget_type = dialogue->g_content->elements[i].type;
-//       if (widget_type == w_button || widget_type == w_input ||
-//           widget_type == w_fs_file_list) { /* Add here new types */
-//         dialogue->active.type = g_content;
-//         widget_t *w = (widget_t *)dialogue->g_content->elements[i].element;
-//         dialogue->active.id = w->id;
-//         break;
-//       }
-//     }
-//   } else if (dialogue->g_action != NULL) {
-//     for (int i = 0; i < dialogue->g_action->count; i++) {
-//       widget_type = dialogue->g_action->elements[i].type;
-//       if (widget_type == w_button || widget_type == w_input ||
-//           widget_type == w_fs_file_list) {
-//         dialogue->active.type = g_action;
-//         widget_t *w = (widget_t *)dialogue->g_action->elements[i].element;
-//         dialogue->active.id = w->id;
-//         break;
-//       }
-//     }
-//   }
-// }
-
 #define DETECT_GROUP_SIZE(group, line_max_len, y, x)                           \
   if (group) {                                                                 \
     group->w.m_y = y;                                                          \
@@ -259,7 +210,6 @@ int32_t draw_dialogue(dialogue_t *d) {
   }
 
   group_el_t *ae_ptr = NULL; /* active element */
-  uint32_t ae_idx;           /* active element */
   /* count dimensions */
   uint32_t x = 1; /* when uses box */
   uint32_t y = 1; /* when uses box */
@@ -317,33 +267,25 @@ int32_t draw_dialogue(dialogue_t *d) {
   wattroff(d->win, A_REVERSE);
 
   if (d->g_content != NULL) {
-    draw_group(d->win, d->g_content, d->active.id, &(d->w));
+    draw_group(d->win, d->g_content, d->active_el->id);
   }
   if (d->g_action != NULL) {
-    draw_group(d->win, d->g_action, d->active.id, &(d->w));
+    draw_group(d->win, d->g_action, d->active_el->id);
   }
 
   /* move cursor */
-  if (d->g_content != NULL) {
-    FIND_ACTIVE_ELEMENT(d->g_content, d->active.id, ae_ptr, ae_idx);
-  }
-  if (ae_ptr == NULL && d->g_action != NULL) {
-    FIND_ACTIVE_ELEMENT(d->g_action, d->active.id, ae_ptr, ae_idx);
-  }
-
-  if (ae_ptr != NULL && ae_ptr->id == d->active.id) {
-    if (ae_ptr->type == w_input) {
-      input_t *input = ae_ptr->element;
-      d->w.cur.y = input->w.cur.y;
-      d->w.cur.x = input->w.cur.x + input->value_len;
-      d->w.cur.x -= input->cur_pos;
-      if (d->w.cur.y || d->w.cur.x) {
-        wmove(d->win, d->w.cur.y, d->w.cur.x);
-        curs_set(true);
-      }
-    } else {
-      curs_set(false);
+  if (d->active_el != NULL && d->active_el->type == w_input) {
+    input_t *input = d->active_el->element;
+    d->w.cur.y = input->w.cur.y;
+    d->w.cur.x = input->w.cur.x + input->value_len;
+    d->w.cur.x -= input->cur_pos;
+    if (d->w.cur.y || d->w.cur.x) {
+      wmove(d->win, d->w.cur.y, d->w.cur.x);
+      curs_set(true);
     }
+
+  } else {
+    curs_set(false);
   }
 
   d->needs_update = false;
diff --git a/src/widget/dialogue.h b/src/widget/dialogue.h
index 895a120..3d7f017 100644
--- a/src/widget/dialogue.h
+++ b/src/widget/dialogue.h
@@ -6,8 +6,9 @@
 #include <ncurses.h>
 #include <stdint.h>
 #include <widget_core.h>
+#include <utils.h>
+#define MAX_IDS 64
 
-enum g_type { g_content, g_action };
 enum d_color_scheme { dc_normal, dc_alert };
 
 typedef struct {
@@ -15,16 +16,14 @@ typedef struct {
   WINDOW *win;
   group_t *g_content;
   group_t *g_action;
-  struct {
-    int32_t id;
-    enum g_type type;
-  } active;
+  group_el_t *active_el;
   char text[DIALOGUE_TEXT];
-  uint32_t is_initiated : 1;
-  uint32_t needs_update : 1;
-  uint32_t needs_destroy : 1;
+  bool is_initiated;
+  bool needs_update;
+  bool needs_destroy;
   coordinates_t *p_coordinates;
   enum d_color_scheme color_scheme;
+  d_array_ptr_t id_map;
 } dialogue_t;
 
 void init_dialogue(dialogue_t *d, const char title[], const char text[],
diff --git a/src/widget/file_list.c b/src/widget/file_list.c
index 3156e18..e4ed0dc 100644
--- a/src/widget/file_list.c
+++ b/src/widget/file_list.c
@@ -114,6 +114,8 @@ ui_file_list_t *init_file_list(WINDOW **win, WINDOW *const *info_win) {
   fui->max_lines = getmaxy(parent_win) - 3; /* 2+1 (bottom info line) */
   fui->active_search = false;
   fui->search_key = bfromcstrrangealloc(12, 64, "");
+  fui->start = NULL;
+  fui->current = NULL;
   return fui;
 }
 
@@ -135,11 +137,16 @@ void draw_file_list(ui_file_list_t *fui) {
   int32_t sz_y_f = sz_y - 2; /* TODO: можно заменить на поле max_lines */
   p_y = 1;
   p_x = 1;
-  fl_item_t *el = *(fui->start);
-  fl_item_t *active_el = *(fui->start);
+  fl_item_t *el = NULL;
+  fl_item_t *active_el = NULL;
   int32_t cur_el_idx = 0;
   curs_set(false);
 
+  if (fui->start != NULL) {
+    el = *(fui->start);
+    active_el = el;
+  }
+
   if (fui->activate_last) {
     fui->current_idx = fui->current_count - 1;
     fui->activate_last = false;
diff --git a/src/widget/fs_file_list.c b/src/widget/fs_file_list.c
index 5983045..c68924e 100644
--- a/src/widget/fs_file_list.c
+++ b/src/widget/fs_file_list.c
@@ -133,7 +133,7 @@ void fs_file_list_cb(callback_args_t *args) {
     }
     break;
   case '\n':
-    select_item(fui, (int32_t *) args->resp_data);
+    select_item(fui, (int32_t *) args->resp_data.val.val.num);
     break;
   }
 }
diff --git a/src/widget/group.c b/src/widget/group.c
index c8b5971..ba29455 100644
--- a/src/widget/group.c
+++ b/src/widget/group.c
@@ -1,37 +1,33 @@
 #include "group.h"
 #include "button.h"
+#include "d_array.h"
 #include "fs_file_list.h"
 #include "input.h"
 #include "progress_bar.h"
+#include "widget_core.h"
 #include <ncurses.h>
 #include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/types.h>
-
-#define MAKE_RESPONSE_M1(args, resp_data, response)                            \
-  if (args->resp_data != NULL) {                                               \
-    *response = -1;                                                            \
-  }
+#include <utils.h>
 
 void group_default_callback(callback_args_t *args) {
   group_t *g = (group_t *)args->element;
   int32_t key = *((int32_t *)args->data);
-  int32_t *response = (int32_t *)args->resp_data;
+  int64_t response = args->resp_data.val.val.num;
   input_t *input;
   widget_t *widget;
-  group_el_t *element_ptr;
-  int32_t element_idx = -1;
+  group_el_t *element_ptr = args->active_el;
   u_int32_t start_pos = 0;
   callback_args_t new_args;
   switch (key) {
   case '\n': /* Enter */
-    FIND_ACTIVE_ELEMENT(g, args->active_id, element_ptr, element_idx);
-    *response = element_idx;
+    args->resp_data.code = cbrp_val;
+    mempcpy(&(args->resp_data.val), &(element_ptr->val), sizeof(struct val_t));
     break;
   case KEY_BACKSPACE:
   case KEY_DL:
-    FIND_ACTIVE_ELEMENT(g, args->active_id, element_ptr, element_idx);
     if (element_ptr->type == w_input) {
       input = (input_t *)element_ptr->element;
       if (input->value_len) {
@@ -44,10 +40,9 @@ void group_default_callback(callback_args_t *args) {
         }
       }
     }
-    MAKE_RESPONSE_M1(args, resp_data, response);
+    args->resp_data.code = cbrc_none;
     break;
   default:
-    FIND_ACTIVE_ELEMENT(g, args->active_id, element_ptr, element_idx);
     if (element_ptr->type == w_input) {
       input = (input_t *)element_ptr->element;
       if (input->max_len > input->value_len) {
@@ -62,7 +57,8 @@ void group_default_callback(callback_args_t *args) {
         }
       }
     } else {
-      widget = (widget_t *) element_ptr->element;
+      /* callback case */
+      widget = (widget_t *)element_ptr->element;
       if (widget->callback != NULL) {
         memccpy(&new_args, args, 1, sizeof(callback_args_t));
         new_args.element = element_ptr->element;
@@ -70,14 +66,22 @@ void group_default_callback(callback_args_t *args) {
         break;
       }
     }
-    MAKE_RESPONSE_M1(args, resp_data, response);
+    args->resp_data.code = cbrc_none;
     break;
   }
 }
 
+union current_element {
+  group_t *group;
+  enum w_type type;
+};
+
 group_t *init_group(WINDOW **win, widget_t *w_parent, group_el_init_t *children,
-                    enum g_direction direction) {
+                    d_array_ptr_t *id_map, enum g_direction direction, enum g_type g_type) {
   group_t *group = malloc(sizeof(group_t));
+  union current_element current;
+  group->parent_group = NULL;
+  current.type = w_end;
   init_widget(&(group->w), w_parent, win, "");
   /* count elements */
   group->count = 0;
@@ -93,6 +97,9 @@ group_t *init_group(WINDOW **win, widget_t *w_parent, group_el_init_t *children,
   for (int32_t i = 0; i < group->count; i++) {
     elements[i].type = children[i].type;
     elements[i].is_default = children[i].is_default;
+    elements[i].g_type = g_type;
+    elements[i].idx = i;
+    elements[i].val.type = val_nul;
   }
 
   /* init child elements */
@@ -101,12 +108,27 @@ group_t *init_group(WINDOW **win, widget_t *w_parent, group_el_init_t *children,
     switch (elements[i].type) {
     case w_button:
       elements[i].element = init_button(win, &(group->w), children[i].label);
+      elements[i].val.type = val_num;
+      elements[i].val.val.num = children[i].val.num;
       w = &(((button_t *)elements[i].element)->w);
       break;
     case w_box:
-    case w_group:
     case w_end:
       break;
+    case w_group:
+      elements[i].element = init_group(win, &(group->w), children[i].children,
+                                       id_map, children[i].direction, g_type);
+      w = &(((group_t *)elements[i].element)->w);
+      current.group = (group_t *)elements[i].element;
+      current.group->parent_group = group;
+      if (i == 0) {
+        group->first_id = current.group->first_id;
+        group->last_id = current.group->last_id;
+      } else {
+        group->last_id = current.group->last_id;
+      }
+      current.type = w_group;
+      break;
     case w_input:
       elements[i].element =
           init_input(win, &(group->w), children[i].label, children[i].length,
@@ -122,28 +144,39 @@ group_t *init_group(WINDOW **win, widget_t *w_parent, group_el_init_t *children,
       w = &(((ui_progress_bar_t *)elements[i].element)->w);
       break;
     }
+    if (current.type != w_group) {
+      if (i == 0) {
+        group->first_id = w->id;
+        group->last_id = w->id;
+      } else {
+        group->last_id = w->id;
+      }
+    }
     /* set dimensions */
     elements[i].id = w->id;
+    add_d_arr_ptr(id_map, elements + i, w->id);
     if (direction == horizontal) {
       w->m_x = group->w.m_x + 1 + group->w.x;
       w->m_y = group->w.m_y;
       group->w.x += w->x + 1;
       if (group->w.y < w->y)
         group->w.y = w->y;
-    }
-    if (i == 0) {
-      group->first_id = w->id;
-      group->last_id = w->id;
     } else {
-      group->last_id = w->id;
+      w->m_x = group->w.m_x;
+      w->m_y = group->w.m_y + group->w.y;
+      group->w.y += w->y;
+      if (group->w.x < w->x)
+        group->w.x = w->x;
     }
   }
 
+  if (direction == vertical)
+    group->w.y++;
+
   return group;
 }
 
-void draw_group(WINDOW *win, group_t *group, int32_t active_id,
-                widget_t *dialog_w) {
+void draw_group(WINDOW *win, group_t *group, int32_t active_id) {
   group_el_t *children = group->elements;
   for (int i = 0; i < group->count; i++) {
     group_el_t *el = &children[i];
@@ -151,8 +184,10 @@ void draw_group(WINDOW *win, group_t *group, int32_t active_id,
     case w_button:
       draw_button((button_t *)el->element, active_id);
       break;
-    case w_box:
     case w_group:
+      draw_group(win, (group_t *)el->element, active_id);
+      break;
+    case w_box:
     case w_end:
       break;
     case w_input:
@@ -176,8 +211,10 @@ void destroy_group(group_t *group) {
     case w_button:
       destroy_button(el->element);
       break;
-    case w_box:
     case w_group:
+      destroy_group(el->element);
+      break;
+    case w_box:
     case w_end:
       break;
     case w_input:
diff --git a/src/widget/group.h b/src/widget/group.h
index e7cf353..fb7cc40 100644
--- a/src/widget/group.h
+++ b/src/widget/group.h
@@ -2,44 +2,35 @@
 #define GROUP_H
 
 #include <stdint.h>
+#include <utils.h>
 #include <widget_core.h>
 
-enum g_direction {
-  horizontal,
-  vertical,
-};
-
-typedef struct {
-  uint32_t id;
-  void *element;
+typedef struct group_el_init_t {
   enum w_type type;
-  uint32_t is_default : 1;
-} group_el_t;
-
-typedef struct {
-  enum w_type type;
-  uint32_t is_default : 1;
-  uint32_t is_hidden_value : 1;
+  bool is_default;
+  bool is_hidden_value;
   char label[DIALOGUE_TITLE];
   uint32_t length;
+  enum g_direction direction;
+  union {
+    int64_t num;
+  } val;
+  struct group_el_init_t *children;
 } group_el_init_t;
 
-typedef struct {
+typedef struct group_t {
   widget_t w;
   group_el_t *elements;
   enum g_direction direction;
   uint32_t count;
   uint32_t first_id, last_id;
+  struct group_t *parent_group;
 } group_t;
 
-#define FIND_ACTIVE_ELEMENT(g, active_id, element_ptr, element_idx)            \
-  element_idx = active_id - g->first_id;                                       \
-  element_ptr = &(g->elements[element_idx]);
-
 group_t *init_group(WINDOW **win, widget_t *w_parent, group_el_init_t *children,
-                    enum g_direction dir);
-void draw_group(WINDOW *win, group_t *group, int32_t active_id,
-                widget_t *dialog_w);
+                    d_array_ptr_t *id_map, enum g_direction dir,
+                    enum g_type g_type);
+void draw_group(WINDOW *win, group_t *group, int32_t active_id);
 void destroy_group(group_t *group);
 void group_default_callback(callback_args_t *args);
 
diff --git a/src/widget/input.c b/src/widget/input.c
index 518884a..75c7d11 100644
--- a/src/widget/input.c
+++ b/src/widget/input.c
@@ -4,16 +4,16 @@
 #include <string.h>
 
 #include "app.h"
-#include <widget_core.h>
 #include "input.h"
+#include <widget_core.h>
 
 input_t *init_input(WINDOW **win, widget_t *w_parent, char *label,
                     uint32_t length, uint32_t is_hidden_value) {
   input_t *input = malloc(sizeof(input_t));
   init_widget(&(input->w), w_parent, win, label);
   input->is_disabled = 0;
-  input->w.y = 3;                              // with borders
-  input->w.x = length + 3;                     // with borders and extra space for the last element
+  input->w.y = 3;          // with borders
+  input->w.x = length + 3; // with borders and extra space for the last element
   uint32_t t_len = strlen(input->w.title) + 4; // with borders and space
   if (input->w.x < t_len)
     input->w.x = t_len;
@@ -29,16 +29,26 @@ input_t *init_input(WINDOW **win, widget_t *w_parent, char *label,
 int32_t draw_input(input_t *input, uint32_t active_id) {
   const char stars[] = "*******************";
   WINDOW *win = *(input->w.parent_win);
-  uint32_t margin_y = input->w.m_y + input->w.w_parent->m_y;
-  uint32_t margin_x = input->w.m_x + input->w.w_parent->m_x;
+  uint32_t margin_y = input->w.m_y;
+  uint32_t margin_x = input->w.m_x;
 
-  wattrset(win, COLOR_PAIR(modal_color_pair));
+  /* counts margins of the ancestors of the same window */
+  widget_t *w_par = input->w.w_parent;
+  while (w_par->parent_win == input->w.parent_win) {
+    margin_y += w_par->m_y;
+    margin_x += w_par->m_x;
+    w_par = w_par->w_parent;
+  }
+
+  if (input->w.id == active_id) {
+    wattrset(win, COLOR_PAIR(3));
+  } else {
+    wattrset(win, COLOR_PAIR(0) | A_REVERSE | A_BOLD);
+  }
 
   mvwhline(win, margin_y, margin_x, 0, input->w.x);
   mvwhline(win, margin_y + 2, margin_x, 0, input->w.x);
 
-  mvwprintw(win, margin_y, margin_x + 1, " %s ", input->w.title);
-
   // left
   mvwvline(win, margin_y, margin_x, ACS_ULCORNER, 1);
   mvwvline(win, margin_y + 1, margin_x, 0, 1);
@@ -48,6 +58,9 @@ int32_t draw_input(input_t *input, uint32_t active_id) {
   mvwvline(win, margin_y + 1, margin_x + input->w.x - 1, 0, 1);
   mvwvline(win, margin_y + 2, margin_x + input->w.x - 1, ACS_LRCORNER, 1);
 
+  wattrset(win, COLOR_PAIR(0) | A_REVERSE);
+  mvwprintw(win, margin_y, margin_x + 1, " %s ", input->w.title);
+
   margin_x++;
 
   if (input->w.id == active_id) {
@@ -57,13 +70,13 @@ int32_t draw_input(input_t *input, uint32_t active_id) {
   }
 
   if (input->is_hidden) {
-    mvwprintw(win, margin_y + 1, margin_x, "%.*s%*s", (int) input->value_len, stars,
-              input->w.x - input->value_len - 2, "");
+    mvwprintw(win, margin_y + 1, margin_x, "%.*s%*s", (int)input->value_len,
+              stars, (int)(input->w.x - input->value_len - 2), "");
   } else {
     mvwprintw(win, margin_y + 1, margin_x, "%s%*s", input->value,
-              input->w.x - input->value_len - 2, "");
+              (int)(input->w.x - input->value_len - 2), "");
   }
-  
+
   input->w.cur.y = margin_y + 1;
   input->w.cur.x = margin_x;
 
diff --git a/src/widget/input.h b/src/widget/input.h
index 2409eec..54b2707 100644
--- a/src/widget/input.h
+++ b/src/widget/input.h
@@ -8,11 +8,11 @@
 typedef struct {
   widget_t w;
   char value[INPUT_TEXT];
-  uint32_t cur_pos; /* is relative to the end of a string */
-  uint32_t value_len;
-  uint32_t max_len;
-  uint32_t is_disabled : 1;
-  uint32_t is_hidden : 1;
+  int64_t cur_pos; /* is relative to the end of a string */
+  int64_t value_len;
+  int64_t max_len;
+  bool is_disabled;
+  bool is_hidden;
 } input_t;
 
 input_t *init_input(WINDOW **win, widget_t *w_parent, char *label,
diff --git a/src/widget/widget.h b/src/widget/widget.h
index 2582210..2d7bb7a 100644
--- a/src/widget/widget.h
+++ b/src/widget/widget.h
@@ -8,5 +8,4 @@
 #include "group.h"
 #include "input.h"
 #include "progress_bar.h"
-
 #endif
\ No newline at end of file
diff --git a/src/widget_core/widget_core.h b/src/widget_core/widget_core.h
index 3a07e09..d058c83 100644
--- a/src/widget_core/widget_core.h
+++ b/src/widget_core/widget_core.h
@@ -5,6 +5,13 @@
 #include <ncurses.h>
 #include <stdint.h>
 
+enum g_type { g_content, g_action };
+
+enum g_direction {
+  horizontal,
+  vertical,
+};
+
 enum w_type {
   w_end,
   w_button,
@@ -15,12 +22,46 @@ enum w_type {
   w_fs_file_list,
 };
 
+enum val_type {
+  val_num,
+  val_ptr,
+  val_nul,
+};
+
+struct val_t {
+  enum val_type type;
+  union {
+    void *ptr;
+    int64_t num;
+  } val;
+};
+
+typedef struct {
+  int64_t id;
+  int64_t idx; /* element index in the group */
+  void *element;
+  enum w_type type;
+  enum g_type g_type;
+  bool is_default;
+  struct val_t val;
+} group_el_t;
+
+enum cbrp_code {
+  cbrc_none, /* default */
+  cbrp_val,
+  cbrp_g_el, /* element of type group_el_t */
+  cbrp_err
+};
+
 typedef struct {
   void *app;
   void *element;
   void *data;
-  void *resp_data;
-  uint32_t active_id;
+  struct {
+    enum cbrp_code code;
+    struct val_t val;
+  } resp_data;
+  void *active_el;
 } callback_args_t;
 
 enum rsize {
@@ -34,19 +75,18 @@ enum rsize {
 };
 
 typedef struct widget_t {
-  uint32_t id;
+  int64_t id;
   char title[DIALOGUE_TITLE];
-  uint32_t x;
-  uint32_t y;
-  uint32_t m_x;
-  uint32_t m_y;
+  int64_t x;
+  int64_t y;
+  int64_t m_x;
+  int64_t m_y;
   struct {
-    uint32_t y;
-    uint32_t x;
+    int64_t y;
+    int64_t x;
   } cur;
   WINDOW *const *parent_win;
   struct widget_t *w_parent;
-  // enum rsize rsize;
   void (*callback)(callback_args_t *args);
 } widget_t;
 
@@ -59,7 +99,8 @@ enum pmt_attrs {
 
 void init_widget(widget_t *w, widget_t *w_parent, WINDOW **win, char *title);
 int32_t get_max_line_len(const char *text, uint32_t *line_count);
-uint32_t print_multiline_text(WINDOW *win, const char *text, const uint32_t win_width, const uint32_t y,
+uint32_t print_multiline_text(WINDOW *win, const char *text,
+                              const uint32_t win_width, const uint32_t y,
                               const uint32_t x, const uint16_t attrs);
 
 #endif
\ No newline at end of file