For "Left hand knife" add this to your autoexec, or simply copy the contents of hands.cfg to your autoexec
exec hands.cfg
This config automatically switches your weapon hand (left or right) based on the weapon slot you select.
switchhandsleft = left hand switchhandsright = right hand
By default, it's preconfigured to have guns in the left hand and knife + utility in the right hand — but you can adjust it to your liking!
- The autoexec does fuck all and the game is still ass*