How do I get Nucleus to see my drive and music folder?

On my iMac, I can “see” my Nucleus as a “shared computer”. When I click on it and describe myself as a “Guest”, I can see all the Roon files, including my library, as connected to the core. Opening the library, I can add/subtract music files (by simple drag and drop) without having to disconnect/reconnect my HDD from the Nucleus.

Happy to help.

Got it. I see Nucleus on the sidebar of the finder. I can click thru that until I see my music folder so I take it I can just drag and drop via there. Thanks again everyone!