Select the Base Behaviours tab and click New
Choose One-off Record Type (evaluated in real-time each time data changes).
Click Continue
Then select the Object you wish to assess for rewarding. Standard Triggerable Objects are listed first, followed by Custom Triggerable Objects
Click Next
Follow Section notes to build your One Off Base Behaviour - Links here: Information Section, Evaluation Criteria Section, Reward Section, Additional Information Section, Behaviour Criteria Section
Note: If the required Object doesn't appear in the list it will need to be activated to make it available. See Trigger-Enabled Objects