Adding and subtracting in the masks

What problem do you see this solving?
 Implement adding and subtracting in the masks we create between layers. Sometimes, when creating masks, it's necessary to subtract a small selection from one layer for a broader selection, and it's not currently possible; manual erasing is required.

When was the last time you were affected by this lack of functionality, or specific tool?

Are you using any workarounds or other solutions to achieve your goals in Capture One?
PHOTOSHOP

Are you happy to be contacted further about this suggestion or request?
“Yes”