I figured out how to do it. i watched a you tube video.
1. connect the pc usb to the micro usb on the left side of the mavic.
2. then, you connect your tablet to the remote controller, just like you were gonna fly.
3. it says to take the props off, but my motors never turned during the simulation.
4. Then run dji assistant 2.
5. power on the remote controller, and mavic, just like you were gonna fly.
6. on assistant 2, you will see connected devices, mavic pro.
7. click this and you will see a menu of the things you can do.
8. click simulator.
9. put in your latitude and longitude. then you will see the mavic on your google map.
10. click start simulating
11. fly with controller and app just like you fly for real
12. you will see the worst flight simulator display in the history of computers!