Your comments
Yes, email address is what needs to be different.
Not having this feature prevents me from working on personal/open-source stuff while at work and is the one killer missing feature which is making me consider purchasing Git Kraken.
Customer support service by UserEcho
Thomas, I wasn't aware of that feature - thank you very much for pointing that out! That will get me what I need.
But given that you already have this implemented and you already have the great "Groups" feature for categorizing repos into named directories ... I bet it would be an easy win for you to get me what I want (assuming you work on SmartGit) ;-)
If I could set that email at a Groups Settings level and have it automatically apply to all repos within a Group, then I would pretty much have the full multi-profile system I am looking for. Other customers would probably like the ability to configure various other repo-level settings at the Group level as well.