hmmm,
what i always do is place 2 clips above the topmost layer, one at the start of the timeline and the other at the end. Then select the area between these 2 clips (it will turn grey) and keep on pressing backspace. The clips below it will lose their gaps. However, those clips which have different audio and video lengths will keep their gaps to remain in sync.
hope this helps.
dzul
season’s greetings 2 everyone! Great creative farm u’ve got here 😉