AWS - how to disable "view/change user data"?

AWS management console has a new feature to view the content of the user data. In EC2 under "Actions->Instance Settings->View/Change User Data", it displays the user data provided as one of the parameters during VM creation API ec2_conn.run_instances.

Is there an option in python API ec2_conn.run_instances to disable this?

The use case for this: Customer launches a commercial AMI image, and the AMI publishing company does not want the customer to view the secret user-data.

Thanks in advance...