Hunter frost trap macro

Hi guys.

I'm looking for a macro that assists me in using frost trap, and to repull the trap-mob if it breaks.
My idea is to use focus to target the mob, and then target whatever the group is attacking.

I also multibox, and want a macro that I can use while boxing, so here's my thought about how I want it to happen.

1. Switch screens to the hunter, and target my trap target
2. switch back to the main and hit the trap macro button 1 time, the hunter puts focus on the trap target, and drops the trap, then assists the main.
3. I hit the trap macro button for the 2nd time, the hunter targets the focus, drops an arcane shot in his face and again assists the main.

Here's what I've come up with so far:
/stopcasting
/focus [target=target]
/castsequence reset=2 [target=player] Freezing Trap, [target=focus, exists, nodead] Arcane Shot
/assist Maincharacter

(The stopcasting is to avoid auto attacking the trap target)

The above macro looks good to me, but I can't get it to work.

You need to put a /stopattack after your cast sequence macro. This should turn off your autoshot.

I'm pretty sure I put that on my pull shot macro on my hunterr.

/stopcasting
/focus [target=target]
/castsequence reset=2 [target=player] Freezing Trap, [target=focus, exists, nodead] Arcane Shot
/stopattack

/assist Maincharacter