how to point camera straight down?

Joined
Apr 5, 2016
Messages
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Age
55
I know I should know this, and I am sure I have read about it. But how do i designate a button to make the camera point straight down when needed?

I can obviously tilt the camera down, but I would like to short circuit this.

cheers paul
 
go under the remote setting in the app and the C1 or C2 buttons one can be programmed to switch from forward/down