How Rescan Apple Music Library On Windows 11

I just installed Apple Music on Windows 11, and I went to import my songs from my NAS backup, but because they are in folders, it won't let me import them all at once. When I select all folders, the selection just jumps into the last folder, and I can only import files, but not my entire folder structure. That will take HOURS. So I instead copied all the files from my NAS to the configured local lobrary... but the songs still don't show up in the app. How can I force the app to rescan it's library to pick up the songs? Baring that, how do I import multiple folders at once?