If you are talking about layers, yes it’s hard to assign pins if they aren’t on the top layer. In INK XML edit you put your copper under silk.
Your copper group will work, but the quicker way is just have the 4 circles in copper0, and put that in an empty copper1. You actually have 2 sets of circles, 4 in copper1, which are on the top of the PCB, and another 4 in copper0, the bottom of the PCB.