Spent soooo much time trying to get this to work, but it's failing. Hopefully the community can help out.

The system here uses Vuhdo or something to take the click and cast a heal. However, it would be a better system if it worked for any unit frame, including enemy unit frames. If we can get this to work, then ISBoxer should be able to take care of it.

Can anyone figure out how to use a repeater region to pass a modifier plus a Do Key Map action?

Here's an example. My 'MouseOver Heal' macro looks like the following:

/cast [nomod:shift, target=mouseover]Nourish
/cast [mod:shift, target=mouseover]Regrowth

Using your system, can you get this to work without Healbot/Vuhdo/etc?

Before everyone starts saying who cares, imagine if you could click on the enemy unit frames with a right click and have a round robin silence? If we can get this system to work, there is so much more functionality available to us than there is using Vuhdo/Healbot/etc.