I think it might be a decent idea to try and save pane configurations prior to the first exit, since I've had some experiences where I'm halfway through entering all my rubric elements and then plom crashes, and...
The code to download/upload other data is already too complicated, needs overhaul. Once that is fixed, we can easily sync rubrics everytime you change them or via polling or whatever
Colin --- I'm giving a seminar talk at 4 and haven't finished my slides yet. Any chance I can meet with you after the talk for canvas integration updates?