Press Space or Right Arrow to go to the next slide. Press Left Arrow to go to the previous slide. You can also click on the right or left side of the stage to go to the next or previous slide respectively. I've just now realised it's hard to find the level editor I was actually talking about, so here it is: https://scratch.mit.edu/projects/305194541 Edit: That project just got taken down. :'( However, since I like Geometry Dash way too much, I have that project downloaded on my computer, so I have uploaded it from there: https://scratch.mit.edu/projects/1243353578/
