Thank you.
Re the snap function, I just meant this:
"When either end of the clip being dragged is near either end of another clip, or the start or end of the sequence, it will "snap" to that position. Hold down the Shift key while dragging to temporarily disable this behavior."
In my case I need to disable the SNAP and holding down the Shift key has no effect.
I do take your point about experimentation. What's frustrating is that what I'm trying to do seems so basic. I will share the project, but just to explain:
1 My whole video is 3mins 20 seconds long.
2 I have a 37s clip sitting with its start point at 2.28.
3 At 2.25 there is the end of blank clip, then three "empty" seconds
4 I want to drag the 37s clip 3 seconds right, ie towards the end of the video. When i try it just snaps back.
I have sent the folder to you directly. Thank you.