My scenario is a double scroll layer scene with binding creating the parallax effect, but it starts in the middle of the canvas versus the left, so that the user can go left or right upon entering the scene. I've got swipe indication arrows (on a top, non-scroll layer) on the left and right of the screen.
When the user hits the left boundary, the left arrow spins 180° to point toward the right edge, letting the user know they can only swipe to the left from that point to make the screen scroll to the right. Once the user moves back towards the center of the canvas, I'd like that arrow to spin 180° back to it's original position.
I'm sure there's a way that exists to make this happen, but I thought creating a trigger that was the opposite of "Reaches (X) boundary" would be useful, since it would mimic the way a lot of the triggers have opposite functioning triggers available in the triggers list.