Is there a way to query existing groups and/or group rules (either separately or tied to each other), that are EITHER connected to a user OR could break a user's affiliation to a group and/or rule? (Would like a relative database view of one to many OR many to many relationships).

Also, when creating a group or a group rule, is it possible to set up a notification (e.g. an error pop-up that warns that creating such a rule will override another rule or break another existing rule), such that it doesn't allow you to create that rule at all?