i know how to bring 3d into unity, and export as obj. im confused after that. i wish somebody do a video tut

not sure, i wish to share this. that they make it easier to turn 90 degrees instead of using radial buttons.  and a brake. when using super speed, its difficult to slow down completely and approach planets. say at 1.3 ly speed, very hard to slow down just right and shift towards a planet. just a bas...

would it be very difficult to change the physics engine for the spacecraft?