I was on a friends VV3 the other day and I noticed that when he takes a clip and puts it on the time line the video and sound remain linked. On my VV3 they are not linked and if you move the clip or Alt-drag to move the frame the sound does not follow. Also if I make a group it does nothing. I would expect that when 2 or more events are grouped, they would remain grouped - at any time, moving any event in the group would move the entire group.
Is there a switch or what I am I missing here?