1). I have my OSNAP turned ON and 'select all' checked but cannot snap to the endpoints or corners of a 3d solid made from a closed extruded polyline. (Update) it seems to work sporadically when I zoom way in, possibly a GRAPHICSCONFIG issue?
2). How can I retain the closed polyline after extruding it? (Update) I finally found the answer, DELOBJ set to 0 fixed it.
32+ years using Autocad, wanting to fully learn iCad and share my knowledge of applicable crossover info from Acad.