So the answer to the question I was trying to ask is clearly "No, you can't".
Chris, thanks for pointing to your thread on the same subject.
I have the greatest awe and respect for what these guys have done with the AI2 programming interface!!! At the same time I wonder why grabbing selected collapsed code blocks and moving them in concert did not occur to them as an essential tool in organizing one's code. Especially when it is all so globally scoped.
If they do implement something, I hope one doesn't have to define corrals (containers) - though that too might be helpful.. My opinion is that we just need on-demand selection of multiple blocks that can be moved together as in Draw or PPT or Windows Explorer, etc. Whether or not this grouping persists (as a grouped set of objects in Draw) would be another issue.
Thanks to everyone for the discussion.