Hi Nick, there is a bug in the current v2 beta for scripting bounding boxes, so there isn't any way to do it with the current one.

But for the next beta I've added in a new "BoundingBox" command, that will let you construct a bounding frame around the selected objects.

If you have objects that are all one the same axis-aligned plane like curves drawn in the Top view, it will build a bounding rectangle otherwise it builds a solid box. If you want lines from the solid box, you can select its edges and do a copy/paste.

Also I added a similar "BoundingBoxCenter" command that creates a point at the center of those bounds instead of the frame itself.

- Michael