It seems like it is not possible to Ctrl+Shift click select a face of a polysurface that is part of a group. I always get the whole group selected. For polysurfaces not part of a group Ctrl+Shift face selection works as expected.
Is there a setting to change this, is it intentional or is it a bug.
If it is intentional, I would suggest to change it to not select the group, but the face. This is how I would have expected it to work. How could I otherwise select a face from grouped polysurfaces (I know move face, but I am working a lot with the Gumball).