I also don't really use emacs. But by the sounds of it, when you want to use a command that involves a register, you get a mini-popup where you input the regist

I also don't really use emacs. But by the sounds of it, when you want to use a command that involves a register, you get a mini-popup where you input the register you want. The downside is that you must push enter after you enter the register you want.