For ring selection, there's a few ways: a) Select edge, ctrl+rmb snap southwest, snap south. (convert to edge ring, convert to face selection) b) Select a whatever, then shift and double click on a neighbor whatever to get a ring or loop of whatevers.
Yes, of course. 1. Create the mesh 2. Copy the inner edge ring and translate it to the right 3. Rotate the ring 4. Extrude the ring to get the exact radius But I think you answered my question with your post above. It isnt possible :/
in 2010 at least there are stepring and steploop, I'm not sure if its called something else in Polyboost. Stepring doesn't work on poly-selection rings, though. I'm guessing because of the way it determines a poly-selection ring - stepringing would change the direction of the ring each time.