Thanks for the info, Mixy.
I would like to see a circle in the figures library. Making one from a polygon is tedious.
I was also trying to create a depression for the TT pit. I could get a figure with negative height from the 0 baseboard but couldn't get the top to show at 0. Do I have to raise the baseboard height and other track height to get it to show in 3D? (Like the valley example on the SCARM Blog?