This has been touched upon in other forum posts (
ie. https://getwacup.com/community/index.php?topic=703.0) but not (as far as I can see) in a request.
Winamp has a plugin that nicely cooperates with plug-and-play media such as a thumb drive. I've already tried to directly transplant this plugin and it appears to be incompatible with WACUP entirely. What I want is to be able to have a music library on a thumb drive that I can transfer between different devices without having to use each machine's space. This
can be done in a somewhat ad-hoc way by adding the thumb drive's directory to the local library, but when I eject the drive the local library maintains references to all of the music without being able to access it, which clutters the library with songs I cannot play. In Winamp this is solved by a plug-and-play entry in the left hand side of the media library window, where you can access the thumb drive's "sub-library" of music, and that tab just disappears when the external drive is absent.
In the above forum post you mentioned this was low on your priorities list, so perhaps if you know of a better workaround, or some way to cannibalize the Winamp plugin to work with WACUP then advice would be greatly appreciated!