Manually installing simulators from Developer site download

It looks like the simulator libs are in the developer folder stored in the downloaded disk images under some UID such as: /Library/Developer/CoreSimulator/Images/3FC7F588-A6CB-4107-ABBA-FDABF615AD87.dmg

How do I set up explicitly downloaded images like "watchOS_9.1_Simulator_Runtime_Release_Candidate.dmg" to be useable for Xcode.

I have multiple dev machines and this would make it much faster, especially since Content Caching does not look to work for Xcode-related downloads from the Developer site.