Just a suggestion but could the extended target highlight the mob the Raid MA has on target? Could also have colour coded highlight for RMA1 RMA2 RMA3 etc
There is a setting that locks an extended target line to the raid main assists and the raid marked targets and one for the group level as well.
Wasn't sure if you were talking about this. examples /xtar set 1 raidassist1target /xtar set 2 raidassist2target /xtar set 3 raidassist3target /xtar set 4 raidmark1 /xtar set 5 raidmark2 /xtar set 6 raidmark3