Button Activation and Aim Assist Mods

Hi guys, more specific question here.
For games like Marvel Rivals or Overwatch, where there is no "Aim Down Sight" - the Aim Assist Mods are only working when you click Fire for example. Also you can bind the "ADS" button to any button to activate the mod but it normally not active "before your shoot" (but that is where you need it).

Is it possible to a) have the mod active at all times or b) have one key automatically "pressed" all the time (which you can programm as the ADS key - so the Mod is active all the time)?