Just to add something to this, if you look at the lua functions used for targeting you will get an idea of how much trouble Blizzard goes to to define what an addon, or macro, can do. If it is something that Blizzard doesn't want done, i.e. looting without a mouse click, then you can't do it. Things like targeting are okay at times, but you have to make them a secure function and secure functions can only be changed out of combat.

Follow is oddly one of those things that can be done in many ways. If they didn't want it done, you wouldn't be able to. Now stopping a follow, that can't be done without a key press

There is a good list of the APIs here . The ones listed PROTECTED give you an idea of some things that only Blizzard UI can do.

- Souca -