Hello SageGlobe
I’m sorry for my late reply.
You have to go to controls and search for camera mod switches there you will see the switch to external and drone mode, like in first image attached
Then you can see what is selected as the control in the keyboard so you can use it or if you prefer you can change it. You first delete current value then you add yours, in my case I changed it to S.
If you don’t see the option then click ALL in the filter where it says assigned so the sim displays all camera options
Cheers
Carlos