How do I change the shortcut for the “Look Up in Tensai” service?
If you go to the Keyboard Shortcuts tab under the Keyboard & Mouse preference pane in System Preferences, you can set Tensai’s shortcut to whatever you’d like. Just click the add button (the plus below the table) and in the sheet that slides down, fill in the following information: Application: All Applications Menu Title: Look Up in Tensai Keyboard Shortcut: whatever you want the shortcut to be Applications will have to be relaunched for the new shortcut to work in them.