Possible Duplicate:
eclipse keybindings settings
How do I import and export keyboard bindings in Eclipse?
Possible Duplicate:
eclipse keybindings settings
How do I import and export keyboard bindings in Eclipse?
File->Export...->General->Preferences, then choose to "Export all" your preferences or just the "Keys Preferences"; make sure to point out the file where you want your preferences to be saved, and finally click "Finish".
File->Import...->General->Preferences, then point the preference file you created when exporting your preferences; choose to "Import all" or specific preferences, and finally click on "Finish".