Is it posible to Keep a masked area as a template, to remask after unmasking?

So I was wondering and trying to find info regarding the possibility to keep a masked area, masked shape, as a template for an object.
Like in the object in the screen shot.
So if I unmask and continue to work in another object but then decide I want to furder modify the first object, just apply a stored mask shape for that object.
I have never used layers yet so I have no idea how they work. I wanted to use layeres once but for a hand that was made of 6 separated object and I discovered it wasn’t posible to use layers for more than an object at a time, so I have never played with it.

But maybe layers can help in something like this?

In the upcoming update you’ll be able to


Super :ok_hand: thank you :blush: