Eclipse Luna - Preserve workspace preferences
Every once in a while you need a new workspace, but you spent ages getting the current one the way you want with the Sublime colour theme and the window arrangement.
To save you some time you can export your current workspace preferences by clicking File > Export > (Expand) General > Preferences. By default, the Export all option should be selected but if not, click [Browse] and specify an export directory; complete the process by clicking [Finish].
Now that you have exported the preferences to a file, open your new workspace and click File > Import > (Expand) General > Preferences. Click [Browse] and select the exported preference file (Optional: select the aspects of the preferences you want to import). Complete the process by clicking [Finish].