In-Line voids for specific diff pair vias/TH pins

Hi All,

I'm getting some designs that they are requesting to have clean voids around vias/TH pins for certain diff pairs.

I see that in global dynamic shape parameter under void controls tab there is a way to create in-line voids. 

I would like to have similar voids, but to only specific vias/TH instead of entire board.  (Cuts out too much PWR/GND planes)

Has anyone come up with easy solution for this?

I've created via with specific anti etch, but the orientation of the vias needs to be adjusted and I would like to make it pretty fool proof.

Please let me know if anyone has any suggestions.