Bounce against some body and not against others

I am trying to have a ship bounce against the side walls but land on the bottom ground.

I have the physics body on but I can’t seem to turn the bounce off with precollision. Can anybody help with this or do you have any suggestions on how to remove the side walls and just change horizontal direction when it reaches the side of the screen while the physics engine is still on?

Thanks
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Figured this one out.

Say I have 2 sidewalls and a floor and a ball bouncing around. I want the ball to bounce against the floor but not against the walls

I set the bounce parameters to the following:

wall: bounce = 0.001
ball: bounce = 0
ground bounce = 1

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