Help with Toggle Background Sketch

I’ve got this worked up to toggle between two sketches: Grid & No grid, but I’d prefer the choices to just make the one sketch either show a grid as the background or not. (That way it won’t loose their work if they change their mind part way through the problem and choice the other one) Thanks!

Since there’s no axes, find a picture of a grid and put it into a graph component, and use the graphLayer(calculatorState) as the background for your sketch.