Set Wacom tablet preferences
In the Wacom Tablet pane of OS X System Preferences, you can create customized tool settings for an application. For example, you can disable the pen buttons for use in Motion but set button 1 to act as a right-click for another application.
Customize pen buttons for Motion
In the Wacom Tablet pane of OS X System Preferences, click the Add button (+) in the Application row.
In the Select Application dialog, do one of the following:
If the Motion app is open, select “Motion” from the Currently Open Applications list.
If the Motion app is not open, click the Browse button, navigate to and select the Motion app, click Open, then click OK.
The Motion app now appears in the Selected Application field.
The dialog closes, and Motion appears in the Application row of the System Preferences pane.
Click the Motion icon, then set your pen tool options.
For more information, see your tablet’s documentation.