Using Final Cut Server it is possible to still use assets that are stored on the server even when the workstation is offline (not on the same network as the Final Cut Server).  This allows users to work on projects using assets from Final Cut Server over a VPN, on an airplane or from a hotel room.  When you control-click on an asset you can select the Prepare for Disconnected Use to cache the primary representation.   At this point if you browse to the ~/Documents/Final Cut Server/Media Aliases you can drag the file into a Final Cut Pro project and edit away.