How to config "resources/uid/mysql.properties" for multiple environment?

Hi,
I follow the guide to setup this project and it works. I can have different config in "application-dev.properties" for development environment and other files for other environment. But how can I config multiple environment for "uid/mysql.properties" file? Thanks!

Read the setup guide and inspect resources/uid/mysql.properties alongside the application-dev.properties environment files. Trace how the project loads these resources and determine whether per-environment configuration is supported. Done means documenting the supported configuration procedure, or clearly stating the limitation and expected alternative.

Written by the indexing model from the issue text.