Happily!

So - I have the above (post from July 28) macros bound to my "dps" key that I spam normally. My DPS key (numpad 1 because I'm left-handed in case you care) is a 2 step mapped key wherein the first step is a "Sync Cursor -> all other" action such that the mouse is in the same location on all windows, and the second step is just the activation of the GSE macro above.

But I also have a click bar over my party frames exactly as Mirai explains in his excellent video here: https://youtu.be/Mizu6e6BEno. The difference in my setup is that I don't actually click on the clickbars very much at all. What I have is that when I mouseover the clickbars it changes the second step of my "dps" key from executing the above GSE macros to executing a much simpler spamming of a single spell. For my disc priest, this means Shadow Mend. (For my druid it's regrowth).

In more detail - I use the "mouseover" capability on the clickbar to remap my "dps" key from hitting the GSE macro to hitting the macro:

Code:
/cast [@mouseover,help,nodead,nochanneling][@player,nochanneling] Shadow Mend
I hope that was somewhat followable. I don't really know how to post screenshots of my isboxer setup, but I'll try to figure that out if that would be useful.