title: Eclipse Preference store persistance
body: <p>I have a multiple user/location RCP application that currently utilizes several user configurable options.  Some preferences are for specific to the station, some are specific to the user.</p>
  
  <p>The options are from a preference store which saves the *.prefs files to "workspace.metadata.plugins\org.eclipse.core.runtime.settings".</p>
  
  <p>This would be fine if we were only using a single machine/user.  But if a user were to go to another station, then the user would be using whatever preferences were setup for that station.</p>
  
  <p><strong>Is it possible to specify another form for persistence (not files)?</strong></p>