Update!
Thanks to the help from that thread of Dcrew: construct.net/en
With this, the enemies now works correctly. When are in your line of sight, they starts to move to chase the player, and when the distance is so long, they stops.
Now the walls are differents graphics (a few for now), that changes by level and type of enviroment.
Now I go to find how the enemies blocking you and then attack you. The enemies with solid behavior makes weird effects with the pathfinding...