adding repositories to a fresh instance od an OBS appliance

I have set up a local copy of an obs appliance which works fine. Now I'm trying to figure out how to add the repositories I need to build SLES12SP5 and SLES15SP3. For example, I have an account on build.opensuse.org and when I click on project/repositories there is a list of repos to choose from. How do I get that same behavior in my local appliance copy? Thx!