Saving custom shapes
 

In playing around, I noticed first that when you create a custom shape (via the "Subtract Shapes", "Union Shapes" and "Intersect Shapes" menu items, for example), then it appears at the end of the shapes in the shape inspector. Is there a way to save such custom shapes so that they automatically appear in the shape inspector the next time you open OG?

I noticed that if you save the custom shape as a stencil, then it will appear in the shape inspector, but only if you first select the stencil in the stencil palette. I'd like to be able to save new custom shapes (and name them), if possible.

Thanks!