Introduce Locked But Editable Compositions
I do a lot of wire and rig removal work, and am constantly battling moving a spline point and finding the entire composition is being moved. This happens while doing other work, as well.
My concept would be a "locked but editable" feature, where the layer is locked in position, but can still be worked on.
Thanks very much for this feature request. The team will be evaluating it for possible inclusion in a future update.
In the meanwhile, a technique to accomplish this in the current version of After Effects is to add an expression to the Position property of the layer with a hard-coded value e.g. [960,540] or whatever the desired locked Position should be. Then the layer will not move around when clicked in the Composition panel, but you can still edit masks, effects, etc. The same would work for Scale, Rotation, or any other property which allows expressions.
- John, After Effects Engineering Team