It is possible to make a plugin that press your buttons and then it automatically hold the buttons ?
Ex: Press USE one time and it will automatically hold USE until the end of the progress, press LMB to auto healing when use first aid kits, also can press SHOVE or whatever buttons to stop the auto holding buttons feature
The idea I took from Payday 2 "Press to Hold" mod, it would be nice to see it in Left 4 Dead 2
This is my early development plugin, however is not really perfect and might confused other player, so if you have any other better method, I hope you're looking forward to improve it.