"FTL" is mostly WoW-specific (but also translates pretty well to RIFT macros); the same thing can be accomplished in most other MMORPGs as well.

For ISBoxer, here's How to set up follow/assist from any window for pretty much any MMORPG (video from MiRai included): http://isboxer.com/wiki/Common_modif...s_Key_Bindings