Is it possible to have translation & locales for a specific region?
For example swiss german and german are very different so I’d like to tailor it based on region.
Hello 
Yes, you can have locales for an entire language or specific regions, you just need to follow the IETF language tag nomenclature when creating the file.
For Swiss German I believe you even have a specific language tag that is gsw, but if it doesn’t work you could try de-CHE.
Hello! Thank you, that’s very helpful 
Do you know if the same thing is possible with translate and adapt?