Subject / Background mask creation: warning dialog if Edit All Selected is off

What problem do you see this solving?
If I have many images selected in the thumbnail browser and the option "edit all selected" is disabled, then a click on subject or background mask should show me a warning message/question dialog (as is the case for exporting) to remind me that this option is disabled.

The problem is solves is that if I click on the mask creation then leave my desk and come back then I am sure the mask is created for all images, not just one.

16.3.1

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

Are you using any workarounds or other solutions to achieve your goals in Capture One?
No

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