How do I make some tilemap NO_solid

I have done a game with a lot of tilemap diferent but i only have on tilemap for the background, but if I put it I cannot move my character inside (is a solid of course) but i don't want to set ALL my tiles.

There are any behaviour, addon... or other way to make it?

Usually you'd use two tilemaps. One would be for the visuals, and one would have the solid behavior and define the walls.

R0J0hound Um... But how can I set it...

Imagine I have 3 tiles for images (X,Y,Z) and one for solid invisible - oppacy 0 (M)

How can i set this last one like the only solid tilemap?

What he means is that you have two completely separate tile map objects -- one is visual, while the other has the solid behavior and simply defines the solid areas(this second one should also be made invisible).

Example

I'm sorry I was outside...

Thanks linkman2004