Perhaps I am missing something, but I cannot figure out how to click the DLC arm button on top of the spoiler without moving the camera all the way down in front of it and rotating it so I can see it. I am sure it was very easy for the captain to reach down and press it (though I do find myself wondering at the wisdom of having the lights being on the forward end of the spoiler vs elsewhere, I guess he had to stick his hand in front of it to see if the lights were on?)

Can a clickspot be added on a screw somewhere or something similar to arm DLC, please?

Hi, 

You don't need to arm DLC as it's automatic when you enter the landing config

As far as I have found out, it's not a Arm button, but a Disarm button"

You only activate it if You don't want it to operate automatic