Feature request: Save/Resume unfinished rounds

I would like the ability to Save an unfinished round and resume it later. 

Importantly, I want to be able to switch the R50 to other modes, say Practice, or On Course Practice, or even play another course, and then be able to resume the unfinished round later.

I may have lots of unfinished rounds with say different user groups that I could choose to resume with; my kid, my buddies. There are many scenarios where this would be useful. Eighteen holes take a long time to finish and people don't always have the time. And before resuming the next day, you want to be able to track some practise shots first.