Would there be any interest in a general purpose “notes” module? I often wind up taking notes on a scan during segmenting, threshold ranges used for this (anatomical) feature or that, and so on. It seems like a quick and dirty module to just edit a text file and keep a link to it in the mrml scene file would be useful. I already do this periodically in emacs (or vi, no offense intended to vi users) but it would be kinda handy to have it centralized. No fancy markup languages, just plain text.
Happy to look into doing this if people think it would be generally useful.
Short texts are saved in the scene file by default (not in a separate file). You can force creating a separate file by typing getNode('MyTextNode').SetForceCreateStorageNode(True) in the Python console.