Copy masks in movie-cliip editor

The movie clip editor allows for multiple masks, but is there a way to create a new mask that’s a copy of an existing mask? I have one mask with 3 mask layers. Elsewhere in the incredibly complex node tree I would like to use just one of these mask layers to mask something else. The animation is around 12 minutes long, so I would rather not animate the mask again. Is there a way to …

… I’ve found it. I append the mask.

So you can append from the project you have open? I’ve never even thought of trying that! This’ll be a big help as I have a similar issue to yours.

No - you save it again first… but… on a complex scene I generally save version numbers as I go along anyway, for safety: encase I mess something up and have to go back.

Ah, I see! Still sound very useful, thanks!