Use the touch screen to operate the phone/camera?
Can I use touch monitor to manipulate my smartphone?
For smartphones that support USB Type-C DP alt mode, you can connect to the models with USB Type-C support, such as M505/T1, for display and touch operation. However, smartphones that output HDMI video signals do not support external touch screen operations.
Please refer to the following artical:
Can I manipulate my camera on Gechic touch monitiors?
No. Camera OS doesn’t support touch signal communication of external touch monitors. You cannot manipulate your camera on Gechic touch monitor.