Thank to pynput, it is possible to capture keyboard even before the application catchs it.

Thank to this, we could capture alt+F1 & alt+F2 (if they are system free) trap the messages and replace them with ctrl+C & CTRL+V !

I had tested this during month on my Linux Mint. It's works great!

sudo apt-get install python3-dev

sudo pip3 install pynput

See the following article for more information:

https://www.delftstack.com/howto/python/python-detect-keypress/

On Linux Mint, deactivate + showing the main menu:

• Menu -> Preference -> CompizConfig Settings Manager
• General Section --> MATE Compatibility
  Clear "display main menu" option (Afficher le menu principal)

On Linux Mint, deactivate the + for Run command:

• Menu -> Preference -> Keyboard Shortcut (Raccourcis clavier)
• Under the "Desktop" section (Bureau)
  remove the keyboard shortcut

Once you add released the system assignment arount F1 & F2 then you can simply start the script with

python3 pynput-cv.py

It will catch the Alt+F1 & Alt+F2 and send the Ctrl+C & Ctrl+V keystroke instead.

Replace the copy/paste shorcut in the terminal application.

On my Mate Terminal, I used F1 to copy & F2 to paste.

The final combination of graphical Apps shortcut and terminal shorcut is just kindly useful. I use them every days.

Cheers, Dominique