First, what a really cool tool! Thanks for releasing it.
Sometimes I want to edit my .cast files, to get rid of mistakes, but because the timestamps are absolute my error (say a backspace that fixes a typo) is replaced with a pause. If the timestamps were relative, deleting or tweaking lines wouldn’t have that.
While the absolute times are important for markers, reading the cast could accumulate the relative times to get the same thing.
Thanks for your consideration for a V3 feature.
Idea: if the time is prefixed by a “+”, it could indicate relative time.
It would also allow snippets to be reused.