Have you looked at the rotating platformer example shipped with Construct2?
Yeah, I did it, but is not exactly what I want. The example rotates every tick towards the player. I want to rotate the Layout 90º when a key is pressed and you can see how it rotates. I mean: LayouAngle(0) += 1 until LayoutAngle(0) = LayoutAngle(0) + 90.
Incrementing the layout angle in 1 until 90, 180, 270, 360. And if its >= 360, put it on 0.
I have the idea in code, but not in Events xD