Sticky Assist?
Now in ISBoxer the assist portion is done for you, and it's done BEFORE your macro... so I was trying to figure out how to do this, and asked Lax to implement an option... just then I noticed a box at the bottom of the Warcraft Macro Action configuration screen, it is a tickbox that says "name for /click".
So I set that box on my assist key to "FTLAssist" and whipped up a keymap for StickyAssist, and gave it the macro action:
Of course, the servers are down, this is drycode, but I see no reason it wont work.
Example of why/when you would want to do this? On Bronjam in Forge of Souls you need to target the soul fragment and burn it down (ok, ideally, I've just been brute forcing it.) This causes my tank to run to the soul fragment, and Bronjam to absorb it... With a sticky assist I should be able to keep the tank parked with Bronjam on the far side of the room giving me plenty of time to burn down the fragment.