Guif0DA: This is already in, simply set the property "Diagonal" to "Disabled".
That's how I did for my bomberman inspired tutorial (week 3, will have to wait for more explanations, the creeps movement).
No it's not. Your exact demonstration the enemy makes little movements in diagonal too when changing direction and that's what I dont want to in my game.
I had to use another pathfinding plugin to make possible what I want in my game, unfortunately the pathfinding from scirra still need more work on it.