You can change existing keyboard shortcuts or map other available commands to shortcuts.
To add a keyboard shortcut for a command:
Choose Tools | Options and click the Keymap panel.
In the Actions panel, navigate to a command that you want to change, and click Add.
In the Add Shortcut dialog box, type in the key combination that you want to use and click OK.
The IDE also comes with keyboard shortcut profiles for the Eclipse IDE and Emacs, either of which you can select from the Profiles drop-down box in the Keymap panel. You can also create your own profiles.