Imagine I have a single clip,
[clipA]. I now want to transition from normal colors to black and white. So I split the clip, and I add the black and white filter to the second clip
[clipA1][clipA2]. Imagine the transition point is at time
1:20. Everything is great, and I continue editing. The clip transitions gracefully at 1:20 from normal color to black and white.
[clipA1 0:00-1:20][clipA2 1:20-2:00]
Now imagine I want to change when the two clips transition point so that instead of doing a smooth transition at 1:20, it does it at 1:30. Naively, I may attempt to drag the transition point:
Problem is it only edits one clip when you drag the transition point and so I now have
[clipA1 0:00-1:20][clipA2 1:30-2:00]. So there's a very drastic jump in the video from 1:20 to 1:30.
I could attempt to manually tweak clipA1, but I was hoping there is a GUI way to do this, similar to how in Final Cut Pro, I can tweak the transition point in multi-cam clips:
Update: In Premiere, they call this the "rolling edit" tool. As you drag one clip to the increase it's duration, it'll decrease the other the exact same amount.