all lawena does is swap out your personal cfg files for it's own
best way is to just make a custom folder with the stream hud/cfg in and swap out your normal custom folder with this one. make sure you override autoexec so any files in tf/cfg don't get execed by accident
make sure you save all your binds and settings in your own autoexec so they don't get overwritten
for binds you use castingessentials, i made this zip for kaido demo reviews which just has CE and some basic settings/binds which are good for streams