I'll try to explain it better with an example. This is a theoretical example btw.

Imagine a fight like dreamwalker in icc:

- 4 types of mobs A,B,C & D
- they run in from 2 sides, in a random order
- they can run in alone, or they can popup with 2-3 at the same time
- there is a kill priority: lets say A has highest priority, then B,C and D
- D is nasty and the only mob that can be cc'd.

Now I'm tanking the left side, and the other tank is on the irght side.
-> mob C comes on my side, with sticky targetting my dps switch to C and start to nuke it
-> mob B & A pop up, obviously i pick them up with my tank; with an assist system my dps would switch to the ones i pick up, the alternative is that i stop dpsing and tank only (which is kinda stupid as mob C is close to being killed).
-> so with sticky targetting & some sort of reset of it, I could switch to mob C, but then my dps should stay on C (so sticky targetting should be active again)
-> mob D shows up: what i want now is 2 dps keep hitting mob C (sticky targettings stays active for them), pickup D with the tank, and hex D with my 3rd dps
-> switch back with my tank to C and my 3rd dps uses sticky targetting again on C

note: if i was to hardcode the target to hex in 1 shamans macro, then he would try to hex the mob that show up on the other side as well, while it's not his task and while it's out of his range

So basically I want to switch back and forth between sticky targetting and an assist system, as this would give me/us ultimate flexibility over what toon is on what target. I have an idea how to do this, just asking if other boxers have tested / used some setup like this and what their experiences are. Before i go through the trouble to setting it up for myself.