Add confirmation to Init EEPROM command

Marlin/ultralcd.cpp

@@ -868,6 +868,9 @@ void kill_screen(const char* lcd_msg) {
       #if ENABLED(USER_SCRIPT_AUDIBLE_FEEDBACK)
         lcd_completion_feedback();
       #endif
+      #if ENABLED(USER_SCRIPT_RETURN)
+        lcd_return_to_status();
+      #endif
     }
 
     #if defined(USER_DESC_1) && defined(USER_GCODE_1)
@@ -2998,6 +3001,23 @@ void kill_screen(const char* lcd_msg) {
     lcd_completion_feedback();
   }
 
+  #if ENABLED(EEPROM_SETTINGS)
+
+    static void lcd_init_eeprom() {
+      lcd_factory_settings();
+      settings.save();
+      lcd_goto_previous_menu();
+    }
+
+    static void lcd_init_eeprom_confirm() {
+      START_MENU();
+      MENU_BACK(MSG_CONTROL);
+      MENU_ITEM(function, MSG_INIT_EEPROM, lcd_init_eeprom);
+      END_MENU();
+    }
+
+  #endif
+
   void lcd_control_menu() {
     START_MENU();
     MENU_BACK(MSG_MAIN);
@@ -3028,7 +3048,7 @@ void kill_screen(const char* lcd_msg) {
     #endif
     MENU_ITEM(function, MSG_RESTORE_FAILSAFE, lcd_factory_settings);
     #if ENABLED(EEPROM_SETTINGS)
-      MENU_ITEM(gcode, MSG_INIT_EEPROM, PSTR("M502\nM500\nM501")); // TODO: Add "Are You Sure?" step
+      MENU_ITEM(submenu, MSG_INIT_EEPROM, lcd_init_eeprom_confirm);
     #endif
 
     END_MENU();