I'm having the same problem in DCS World, A-10C, 1.2.0. I have two 1920x1080 screens, side by side in Windows, with CapLoz's Helios profile on the touchscreen (the monitor to the right). I would like to make it clickable for the touchscreen.
I can get reasonably close horizontally, but cannot get it in the right place vertically.
Using MouseLoc.exe, the coordinates for the top left of the box where it should appear are about 3047, 635. The bottom right of the box is 3827, 1030.
MonitorSetup is as follows:
I would appreciate any help you could provide.