How to do app level global parameters in new UI

Hi there.

Just got the new UI where providers and new parameters system replace the old deployment profiles.

Previously we had an app with around 15 services and 3 stages in each. Each stage was a deployment profile, so we had in effect 3 sets of parameters shared across 15 services.

This was great as we only had to maintain 3 sets of parameters (per stage) and they were automatically deployed across all services.

Now it appears that parameters are local to each service, with inheritance only going service → stage (instance). This means that we now need to maintain 15x3 =45 sets of parameters!

Whats the recommended way of keeping stage parameters in sync across all services in an app now?

Just wondering if anyone knows of any want to set parameters via CLI?