Ok....I know what you're going to say.. "Are you kidding me.. He doesn't know what it is?"... I always tell people nothing is a stupid question and you won't know until you ask so here goes.
What is the moving slider shown below?  I've looked at tutorials and I haven't found anyone that addresses that directly.

Can you post a picture please?

patou72 Posted at 2015-6-29 05:05
Can you post a picture please?

I'm not sure why it wasn't showing . I uploaded it again

It shows the pitch of the camera.

Yes, that gentleman who posted before me is Correct. So, for example, lets say you're in flight and you want to tilt your camera DOWN, you'll notice the moving slider will move the red line to the bottom once you are looking 100% down, and you can control the camera's pitch by simply dragging your finger on the slider deal.
Any questions, please ask.
Happy Flying.!**!

Thank you both !!!