Looking for a certain macro..

To start off with, I like a nice minimal UI. One of the things I like is for display names to remain hidden. I do need them on sometimes though, with interacting with certain items, and scouting for FC recruits. This means I'm mucking around with the display name settings quite a lot.

What I need to know is, is there a macro I can use to make this process easier? I'm aware there used to be a command (/names on/off), but this no longer works. Are there any other alternatives?