Use a Label Group in a Rule
Using a label group in a rule expands into multiple rules, and cross-communication is allowed.
For example, the Non-Prod label group is used again here, but in the rule, not the scope, which allows for cross-communication.
Scope:
App: HRM
Env: All
Loc: US
Rule:
Sources: Non-prod DB
Services: MySQL
Destinations: Non-prod DB
This means “allow MySQL from Non-Prod DB to Non-Prod DB for the HRM application in all environments located in the US," and would allow the following communication:
HRM | Dev | US | DB ← HRM | Dev | US | DB
HRM | Dev | US | DB ← HRM | QA | US | DB
HRM | Dev | US | DB ← HRM | Stage | US | DB
HRM | QA | US | DB ← HRM | Dev | US | DB
HRM | QA | US | DB ← HRM | Stage | US | DB