I'm trying to get my Wacom Cintiq Pro 13 working, and the Wacom instructions tell me to drag and drop Wacom Tablet Driver and Wacom Touch Driver into my "Input Monitoring." However, Input Monitoring will not accept drag and drop. The empty list of apps displays "Apps that have requested access to monitor input from your keyboard will appear here."

Furthermore, my tablet doesn't seem to be able to display from my Mac, despite being connected by a USB-C cable.

What should I do here?

I'm trying to get my Wacom Cintiq Pro 13 working over a USB-C cable connection.

The Wacom instructions tell me to drag and drop Wacom Tablet Driver and Wacom Touch Driver into my "Input Monitoring." 

However, Input Monitoring will not accept drag and drop. The empty list of apps displays "Apps that have requested access to monitor input from your keyboard will appear here."

What should I do here?