To better structure my code I try to group subs related to each other in each module. (For instance: One group for events (like jobdone), another for ui events (like all _clicks), and a third one for timers, etc. Other people would most likely group in a different way, but this works fine for me.)
It would be very nice to be able to edit the templates used when creating a new module, so the boiler plate comments (or regions, if one uses them) for my groups were available from the start.
(The alternative is to keep a separate text document to copy-paste from, and it disturbs the flow surprisingly much.)
EDIT: A small addition, to clarify about the actual editing. I'd be perfectly happy with a directory somewhere with files like activity.bas.template, that B4A used automatically (and if not available, just use the built-in one). The template files would be just standard bas files that I had to edit using Notepad or whatever. I realize there are special fields in the bas files, but they are not very hard to understand or dodge.