Like in the case of A New Hope. If I wanted to make a all-in-one OT 2 hr movie. To get the Droids from the ship to the farm and out to Obi-Wan’s as fast as you can. How do you cut the Jawa stuff and the droids splitting up etc. and have it still make sense of how they ended up with Luke.
I know this is a really basic question. It just seems like that is the key to making fan edits in general. Plenty stuff that isn’t that important, but you need it to get from here to there.