Press "G" to hide/unhide the editor grid Press "B" to cycle through backdrops Aside from the mouse you can use arrow keys and space to place blocks, note that erasing blocks isn't available on this build and of course, the clone limit.
I decided to give a very early sneak preview on one of my next projects.This is based off of a PC game from my childhood that I'm attempting to remaster on Scratch. Shoutouts to Big Fish Games, formerly Grubby Games!!