OpenSUSE:Build Service private instance missing some SLE distributions

Hi, I'm new to OBS, so I apologize for this question. I have installed OBS-Appliance and connected to OBS at build.opensuse.org. However, in the test project, I can only see SLE15.2 and older versions. Is it possible to add the current SLE15.5 and SLE15.4? I believe these build targets should be available. Maybe not. link: https://en.opensuse.org/openSUSE:Build_Service_supported_build_targets Best regards JP