You can group, link and test video clips on the timeline. The "nest" one is the only one that seems to actually do anything similar to what I expect. Both group and link don't seem to do a gosh darn thing!
I expect them to group as in, I can move them around as a group, change their length/speed as a group, and apply effects as a group.
Still, I would like to be able to degroup them at any time.
Only "nest" seems to do anything like what I want, but it seems permanent...
Think of them as a knife, a fork and a spoon. You can eat with all of them, but they really have different purposes. If Nest is what you want, there is nothing "permanent" about it. You can always go back into the nested sequence and make changes. Just doubleclick on it.