Can you edit brackets that have a flash frame and are spread out further than 5 seconds apart?

Yes — bracket timing doesn't matter. Grouping is based on how similar the angles look to each other, not timestamps. Time gaps between brackets are fine.

How grouping works

The AI uses vision-based grouping — it identifies which brackets show the same angle by visual similarity. Timestamps aren't a factor, so the time gap between frames can be any length.