diff --git a/UI.hpp b/UI.hpp
index a0fd61e..318a7a3 100644
--- a/UI.hpp
+++ b/UI.hpp
@@ -98,7 +98,7 @@ extern char g_bank_name[NUM_DEXED][BANK_NAME_LEN];
 ************************************************************************/
 elapsedMillis back_from_volume;
 uint8_t instance_num[8][8];
-char alphabet[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+const char accepted_chars[] = " ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-abcdefghijklmnopqrstuvwxyz";
 
 #ifdef I2C_DISPLAY
 #include <LiquidCrystal_I2C.h>
@@ -256,6 +256,7 @@ void UI_func_eq_treble(uint8_t param);
 void UI_function_not_enabled(void);
 void UI_function_not_implemented(uint8_t param);
 bool UI_select_name(uint8_t y, uint8_t x, char* edit_string, uint8_t len, bool init);
+uint8_t search_accepted_char(uint8_t c);
 void lcd_display_int(int16_t var, uint8_t size, bool zeros, bool brackets, bool sign);
 void lcd_display_float(float var, uint8_t size_number, uint8_t size_fraction, bool zeros, bool brackets, bool sign);
 void lcd_display_bar_int(const char* title, uint32_t value, float factor, int32_t min_value, int32_t max_value, uint8_t size, bool zeros, bool sign, bool init);
@@ -5081,6 +5082,7 @@ bool UI_select_name(uint8_t y, uint8_t x, char* edit_string, uint8_t len, bool i
 {
   static int8_t edit_pos;
   static bool edit_mode;
+  static uint8_t edit_value;
 
   if (init == true)
   {
@@ -5088,6 +5090,7 @@ bool UI_select_name(uint8_t y, uint8_t x, char* edit_string, uint8_t len, bool i
     lcd.print(edit_string);
     edit_mode = false;
     edit_pos = 0;
+    edit_value = search_accepted_char(edit_string[edit_pos]);
     lcd.setCursor(x, y);
     return (false);
   }
@@ -5098,7 +5101,12 @@ bool UI_select_name(uint8_t y, uint8_t x, char* edit_string, uint8_t len, bool i
     {
       if (edit_mode == true)
       {
-        edit_string[edit_pos] = constrain(edit_string[edit_pos] + 1, 32, 126);
+        edit_value = search_accepted_char(edit_string[edit_pos]);
+
+        if (edit_value < sizeof(accepted_chars) - 2)
+          edit_value++;
+        edit_string[edit_pos] = accepted_chars[edit_value];
+
         lcd.setCursor(x + edit_pos, y);
         lcd.print(edit_string[edit_pos]);
       }
@@ -5122,7 +5130,12 @@ bool UI_select_name(uint8_t y, uint8_t x, char* edit_string, uint8_t len, bool i
     {
       if (edit_mode == true)
       {
-        edit_string[edit_pos] = constrain(edit_string[edit_pos] - 1, 32, 126);
+        edit_value = search_accepted_char(edit_string[edit_pos]);
+
+        if (edit_value >= 1)
+          edit_value--;
+        edit_string[edit_pos] = accepted_chars[edit_value];
+
         lcd.setCursor(x + edit_pos, y);
         lcd.print(edit_string[edit_pos]);
       }
@@ -5164,6 +5177,19 @@ bool UI_select_name(uint8_t y, uint8_t x, char* edit_string, uint8_t len, bool i
   return (false);
 }
 
+uint8_t search_accepted_char(uint8_t c)
+{
+  if (c == 0)
+    c = 32;
+
+  for (uint8_t i = 0; i < sizeof(accepted_chars); i++)
+  {
+    if (c == accepted_chars[i])
+      return (i);
+  }
+  return (0);
+}
+
 void lcd_display_int(int16_t var, uint8_t size, bool zeros, bool brackets, bool sign)
 {
   lcd_display_float(float(var), size, 0, zeros, brackets, sign);