Newtonian physics in a space game

Hello,
I am developing a Sandbox/Space adventure game. But i want the player to be able to get in his Spacesuit and leave his station. However as of now i dont know how to write a script that would change the behavior of the player when he leaves the Station (Inside the station is gravity). How would i do that? Any ideas?

Thanks in advance.

Turn gravity off on the rigidBody… useGravity=false

and use addForce whenever he turns on his spaceshuit boosters or throws something away or pushes himself away from something.

Also make sure you put the right mass on the rigidbody etc…