Need Help Preventing Relate/Unrelate Actions When Status is "Closed"

[alohatech]

Hello,
I Have two entities, A and B. Entity A has a status field, and it can have multiple related B records.

I'd like to implement...

[alohatech]

Thank you so much, Yuri, for your reply.
Is there a way to do this in the current version of EspoCRM, or should I wait for version 9.1?

[alohatech]

Hello for each entity, the 'name' attribute is automatically used and displayed in titles... (as shown in the image). How can I configure the system to...