Thanks all. The pointer to the Tinka plugin was especially useful. Although it's maybe telling that I hadn't found that myself, despite literally hours of googling, including (in the beginning) explicitly for 'tiddlywiki plugin tutorial' and variations on that. And if it's linked to from
tiddlywiki.com somewhere, I didn't find it. I do have some thoughts (both as a software developer and as a fresh user who's trying to do some what I'd think would be at worst medium hard customizations to fit a specific workflow) on overall usability and documentation, but it seems from the copious other messages on this list that this is actively being addressed and that my notes wouldn't really add any value. And I don't want to come across as ungrateful either - I understand how things got to where they are, but I have good hopes that Tiddlywiki will be a great tool that will do what I want much better than all the other tools I have tried over the years and that some temporary frustration will soon be forgotten. So thanks to the developers (and I don't mean that in a damning with faint praise way :) ).
(for completeness and for those who hadn't been reading along - what this plugin does is it provides a way to include videos in your tiddlers, collapsed by default, and it lets you set a starting time stamp in the video; so if you're analyzing video(s), you can keep notes on what happens at various points in time in the video)
cheers
Roel