>> you cannot directly copy a file to the client machine; you can just play it.
Bummer. Well, the expanded client/server - local/remote capability is wonderful, no bummer there.
But what I've long wished for in MC is the ability to select and copy files at the file level -- sort of a reverse Import (Export?).
In a local situation it would be a big help in MC to directly grab and copy (export) one or several media files to a different location (might not be an external location or drive, so the sync workaround is limited..). Just a quick "copy here" action, not a complex Rename, Move & Copy that requires configuration (and thereby blows away the prior configuration).
Of course this can also be done outside of MC by locating the file on the disk. But sometimes there are several such files, grouped together in MC by name or artist or playlist or whatever, yet located in several places on-disk, so it's quite a chore to round them all up to make physical copies at one location. I do this all the time to move a limited number of files from my huge desktop drive to the small drive on a laptop.
In a remote library situation, enabling the local MC client to do this might be the only solution because the remote drive might not be otherwise accessible.
So, the feature request is for a right-click Copy File... option that acts on all selected files as a batch. It probably opens the Windows file dialog to select a location, and if more than one file is selected it does not allow renaming (so it doesn't stop on each file).