Animation tips

Hi guys

I have a character on one layer, eyes on another and mouth on the third. I imported the streaming sound as guide for where which mouth/eyes should appear. I have a list of different mouths like “eeh” “ooh” “aah” etc, and different eyes.

All I want is some few tips how to save time without getting lost inside thousands of frames and getting a good overview over the entire scene.

Currently I have all eyes and mouths on a seperate layer, and I find a particural frame where to insert a particular mouth/eyes.

Is there a easier way?