Avoid collisions of physics

How can I avoid collisions between other physics but not with another objects?

Example: I have 2 squares with physics, 1 player and 4 walls, the squares can hit the walls and the character, but a square can not hit another square.

Thank You!

What do you mean by avoid and "square cannot hit another square"? Clarify.

— I want the physics not collide each other physics but collide with another opjects.

Im sorry for my bad english :(

On start of layout > square > disable collisions > square

liaeb I try, but dont work If the square have the behavior Physics :(

Ghaelito its sounds like your choosing the wrong option..

<img src="https://dl.dropboxusercontent.com/u/5480026/collisions/Capture.PNG" border="0" />

Is this what your trying to achieve?!

DEMO - dl.dropboxusercontent.com/u/5480026/collisions/index.html

CAPX - dl.dropboxusercontent.com/u/5480026/collisions/collisions.capx

Yahhhh!!!!! Yes! Im choosing collisions for object, not for physics!!!

TYTYTYTYTYTYTYTY!!!