I don't have that button, how am I supposed to edit my keys?

The edit button was a library plugin that I had found in a different addon and found extremely helpful. At some point one of the WoW updates broke it and the library author never updated it, so I had to remove it.

you set the keys like you want them and then press update on the profile, make a new profile and then change all the keys the way you need them for proflile two press update again and when you swap it update them ingame,