I am getting ready to purchase the vision plus V3 which will be my first purchase above the tiny Hubsan quad copter I've been playing with for a few months. I have a question regarding the map used for waypoint flights. Is there a way to download maps to your device so that you do not have to be connected to the internet at the time of flight? I would like to use my 7" Samsung Galaxy tablet since it has a larger screen than my cell phone but it does not have cell service except within Wi-Fi range. Also, what map app does this use or is it built into something in the DJI app? Thanks for any answers in advance.