How to set custom hotkeys for each keyboard layout in Ubuntu?

Question

Keyboard layout

In the keyboard layout settings in Windows, you can easily set a separate hot key for each keyboard layout. I use Ctr+Shift+1, Ctr+Shift+2 and Ctr+Shift+3. Very used to it.
At work, I have to use Ubuntu, out of habit, every time I need to switch the layout, I reach for this combination. In the Ubuntu settings, I did not find the ability to set my own hot keys for each language. Please tell me how to get out of this situation.

Answer 1

In general, I made a rather crutch, but quite a working solution. I wrote a script that emulates pressing the layout switching keys the required number of times. For the script to work, you need to install "xkb-switch" (to determine the current keyboard layout) and "xdotool" (to emulate keystrokes). The launch of the script is hung up on pressing the keys you need.
Script code:

#!/bin/bash
source_lang=`xkb-switch`
dest_lang=$1

# Если уже на нужной раскладке
if  
then
  exit 0
fi

# Необходимая задержка (без неё не сработает)
sleep 0.3

# Если 1 раз нужно нажать на переключение раскладки
if  
then
  xdotool key super+space
  exit 0
fi

# Если 2 раза нужно нажать на переключение раскладки
if  
then
  xdotool key super+space super+space
  exit 0
fi

Unfortunately, the script is not universal (I didn’t write bash scripts at all before), because it is tailored for a specific case. In this case, these are:
1. Three languages ​​that go in the order Us, Ru, Ua
2. Layout switching in the system is set to super + space
If someone offers a version of a universal script that will itself determine hotkeys for switching layouts and order languages ​​in the system - I will only be grateful.
The script is launched by the command "<path_to_script> <language_code>", for example, if your file is located in your home directory and has the name "language_switcher.sh", then to switch to Russian, you need to execute "./language_switcher.sh ru" (in fact, such commands and you need to hang on each hot key)