You can't set a button to be like holding down ctrl.
It's impossible.
You can write the number 5 to parameters.
No, it's not possible.
Command: Macro Parameters: \printscreen
If you have Windows 11, then you have to set HotkeyP option Use keyboard hook for all hotkeys.
Then you would also need to change the Windows taskbar settings to enable the small icon of HotkeyP in the taskbar notification area.
I updated the translations.