Mouse-casting to an ATG

Playing EVE with 2 DPSers and I'm trying to set a mouse broadcaster that will just be between those 2 toons. I created an ATG and put my 2 DPSers in it. Then I made a copy of the 'Activate Mouse Repeat' key map, named it something else, set it to a hotkey, and changed the targets to my DPSers ATG. The hotkey turns it on and off, but it's still going to my entire character set, not just the ATG.

Here's the link to the solution someone sent me in chat:
http://www.dual-boxing.com/showthread.php?t=30963&highlight=repeater+target+action

This worked for me however, it also broke the repeater for my entire character set (the default repeater). I managed to get both working by adding a 'Repeater Target Action' Target: Window:Current, Repeater Target: All w/o Current in Steps 1 and 2 of 'Activate Repeater' keymap.