I have created several groups, which in my model happen to be a bridge, stonework, glass beads, and retaining wall block. Once again, this is several groups, which I have now combined into one group. I have created a second group which is stone base material, and I want to move it into the above combined group, and somehow intersect, or carve out the area from my top group, into the bottom group. I do not know if this is possible. I see the bottom group is a solid, but the top is just a combination of several groups. Any help would be appreciated.
zig zag bridge experiment.skp (424.4 KB)