The touch screen can only be used with a single display and can not be used in combination with other screens.
※ When using Zoom Rooms, 3 screens are connected, 1 screen is connected with a touch display, and it can not always be used as a whiteboard.
Use the touch screen monitor as a Zoom Rooms display
Getting Started with Zoom Rooms for Touch Display
What is the difference between Zoom Meeting and Zoom Rooms?
How to change Zoom Rooms settings
How to switch Zoom Rooms linked to your PC