[Feature Request] - Required Field for Labels

**Is your feature request related to a problem? Please describe.**
When I create a Polygon Label, I want that it to be labelled with the tag name, and this should be a required field. For now, I can't set it to required, and I am allowed to "deselect" the tag for a particular label, which is not ideal.

**Describe the solution you'd like**
I would like to have a required parameter for Labels

**Describe alternatives you've considered**
None

**Additional context**
None