On the latest versions of Clevertouch you can lock and unlock the touch function of the screen by pointing the remote at the panel and pressing the yellow button once. Once the screen is locked you will see a brief message on the bottom of the screen saying "Locked" to unlock the screen and enable touch inputs again simple aim the remote at the panel and press the yellow button again. A brief message will appear on the bottom of the screen saying unlocked.
If you want to lock the touch functions and the physical buttons on the panel follow the same method simply pressing the red button.