Press / to type. If you're on mobile, press the stage that's exposed at the bottom of the screen. Please note that if the welcoming/typing doesn't work, try clicking OUTSIDE the project frame, and then trying again.
YOU MUST BE LOGGED IN ON A SCRATCH ACCOUNT TO USE! OTHERWISE IT WILL NOT WORK! If Scratch's cloud variables aren't working, go to this link https://turbowarp.org/1153709616/