Folders/Groups for Masks
I'd really like to see Folders/Groups for Masks similar to how Mocha can have folders. It would help for organization of complicated roto work.
If AE could see a group of masks as one mask, then that would be very helpful and save me a bit of time. I'd like to be able to add an entire series of masks as a whole to an effect (composing options) rather than each mask individually.
Overall additional control over expansion and feathering would be great.