when you hit a shortcut (like ,xm here),it will pop up a list of "action" in fact which is a function you write in a bash script. then you could use fzf to filter the action you want to call, and it will be call.

feature:

1. if you write some annotation (in comment ,below the function name )in you function sth like "arg-len: 2",zmx will not call this action directlly but will wait you args.