OK after testing there is one problem.
The lag causes it not to update usually on first click.
So i think ill have to separate the numpad1-5 so I can spam numpad1-5 to get the right target, and then click numpad0 for the actual heal.

It takes 2 sometimes 3 keypress spam on numpad1-5 to get the entire group targetting the right target.
Otherwise - it works.
Anyone want to help fix it so it works in one click that would be awesome.