Hi WN,
So we need to make sure Krass understands the drill down selections....

So a solid is a single click selection. A solid can have multiple surfaces and edges that make up that selection.

A second click on the selected solid can select "Just a single surface" or "edge" of the joined surfaces and edges that make up the solid....

Those components that make up a solid, as joined pieces, can be "sub selected" (And Named!)....

I believe you know this, but i dont think krass understood this part. Just trying to figure out how to make it clear....