You can open the console up any time by pressing the tilde key (~) located at the top left of your keyboard (non-English keyboard users, see above).
bind 'HOME' 'say ㅇㅅㅇ' bind 'END' 'say thats offensive to people from Hayati. I know how to make a bind, I already have one for igniting enemies, I just don't know the command that makes the entities get vaporized. type bind *key* 'ttt_radio *command*' A thing to remember is that the command itself, must be surrounded by '' as shown. Next, you type that command again, add the output you got earlier, type semicolon and type say drop.
How to bind kill in gmod ' those are just some binds you could do.