Monitoring flows with call activities as a single graph

I’m considering how best to structure a workflow which will include some sub processes that run in parallel. These sub processes may also have definitions that get updated at a different cadence to the main parent workflow. Therefore some combination of event sub processes and call activities looks attractive.

I would however like to make it as easy as possible to monitor these with close connection to the parent process. I am wondering if there are any plans or thoughts about Operate having the cability to fold such flows into the parent graph? The user could then select the parent process and explore all activity as if it was internal.