Another plea to the AFNI overlords.

Have I raved before about how much I love the Render (new) plugin? It reminds me of when my parents added a room to their house when I was a toddler and now 30 years later it is still always referred to as "The New Room." Now, don't get me started on the neocortex...

Anyway, having used it to make pretty pictures for a while, there is one thing that I find myself wanting quite often, so maybe you could add it.
There is an option to "Cutout overlay," so when you cut out parts of the underlay anatomical image the overlay disappears too, rather than having blobs remain hanging out in space. That is useful, but what would even cooler would be if there were an analagous option to cut out only the overlay, and not the underlay. The reason is, sometimes I want to show and activation rendered on a sagital view of the 3d surface, and I need to use "ShowThru mode" so it will show up since it's just slightly buried in the gray matter, but there is another blob of activation nearby that is also showing up and not easy to distinguish from the one on the surface. I can eliminate the second blob by using a cutout, but then I end up showing my activation on a little sliver of lateral brain that looks weird. So if I could use the cutout just to remove the overlay but keep the whole brain showing, that would be ideal.

Thanks in advance should you choose to accept the mission!
-Jed