camera Aircraft Events not working

[NerdyMuppet]

I would like to cycle through views or zoom in and out with the camera, but it is not working using

event_to_trigger = ae.find("VIEW_MODE")
event_to_trigger

As I noted in this reply I managed to change the position of the view, but I would like a little more intricate control of the camera settings.
I would then like to make a screenshot, which doesn't work either when I use

event_to_trigger = ae.find("CAPTURE_SCREENSHOT")
event_to_trigger()

Am I missing some developer setting is MSFS? Do I need to turn on developer camera or something. I don't understand why it does not work.