I mapped '\' to start chat on my clones, it is unmapped on my main. I also unmapped both <enter> and '/' on my clones.

So if I need to do a group command (/camp for instance) i hit \/camp

Generally though I do override, but the mapping change allows me to still do group command/emotes but prevents gibberish from printing or accidentally sending the same message to "/1" (pretty embarrassing when I did it lol)

edit1: Oh and I also unmap 'r' from responding on my clones. One of the main reasons I still allow them to chat is if they get whispered I can respond if I want, though generally I respond on my main.