This all deserves a dedicated videos on axis. Also the mechanics of turning axis, and the cutting component axes. I don't fiddle with them much but i am never quite sure what I am doing when I do. I know there are various vids but it'd be nice to SU create the one source explanation. Hide show axes etc.
MacOSX (El Capitan) ShetchUp Pro v16 Layout Twilight Pro v2 M2 Kerkythea PowerCADD