Thanks!

With the steps given (by Ualaa and Ualaa in the link ) I was able to set this up quite easily. In fact I feel silly for not doing this earlier. Though guess I can only learn so many new things at a time.

Only issue I have.

All works fine but I seem to be in a state after I use my ground spell (healing rain) where all mouse events are going to all windows. Activate Repeat shows as off, but if I toggle on/off then I get back to the normal mode of mouse events not going through.

To be more specific , I created a ground action group (my two shaman)
Then I'm using one of the preset dps keys (5).
I then set it to send next click to the ground group.

Any thoughts into why I am sending all mouse events to my slaves from this point on?