I'm making this post in the name of many which would surely want the same thing as i want, which is Secondary asign key configuration. The reason why i want this is because i want to have two buttons set as crouch so i can crouch with pro when i need to and so i can slide like a pro when i need to. This additional configuration would help really really much and this is just one of many configuration people would do if they had secondary asign key option.
I am writting this in hope to get many positive replies and for crytek to acknowledge it & make it possiblein som future patch.So please reply with your thoughts regarding this idea which should have been allready implemented in the game as lots of PC games have it allready

Two keys for one action wouldn't be bad, but maybe this is on purpose... You should try posting this on the "Community suggestions for future patches"!