You could play files from Media Server at another location, but you can't download them that way.
You could also sync files to a handheld or phone.
actually you can, but it requires modding the Gizmo webserver files to generate an HTTP response resulting in a downloadable URL link. this is actually really simple for FLAC files, or other media files otherwise unstreamable by browsers directly.
<!-- begin: loop(z, 0, min([LibraryFilesCount], 100)-1) -->
{ 0: { src:"[LibraryFile([z]).FileLink]&Conversion=WebPlay&Playback=1",type:"[LibraryFile([z]).MediaType]"}, config: { title: "[LibraryFile([z]).Name]", cover: "[LibraryFile([z]).ImageLink]"[LibraryFile([z]).AdditionalConfig]}},
<!-- end: loop -->
you need to look for that loop in
play_html5.html and completely remove the parameter for Conversion (to force a FLAC file to download). but most other audio file formats are supported natively in the browser, so we can try forcing a mime-type but after some experimenting it looks like the HTTP response just gets the content type from the audio file itself.
the easiest way to do this is simply add your own <audio> element with a control property that allows right-click "Save audio as.."
ill stop there, in case this kind of thing is frowned upon