I didn't realize there were 3, that's right 3, posts on this one. When I read the 1st one (I read the board from the bottom, up, because I like to see what' been posted since Friday), I saw your follow-up. Soooo, I happened to have already done the work of what you suggested for Michelle. I thought it would be such a 'waste' if I didn't follow thru.
As Henry suggested, or as I have for you, more on sandboxes ...Sandbox Plans