First question................. explain maps to me. I've read that you can download them "before" going flying. How do I do that? Just open the remote control and scroll to where I'm wanting to fly? I'm not sure I understand this. And if I'm already there, using my iPhone, I get a notice about no wifi and that it will use a lot of data to download them with cellular. I click OK, so does it go ahead and download them? Question 2..................... what is the difference between Follow mode and FPV mode, and which one should I be using? I see the camera looks to the side just a wee bit more on Follow mode. What's that about? Thanks!