A slight change in the example circuitIf you inadvertently made any changes to the example circuit, reload example. cir. Now we will experiment with changing the OR gate to an AND gate. First, it will help to keep track of where the gates are by locating them within a rectangular grid. To display the grid, select On from the Grid menu. Then choose Delete from the Changes menu. Now you can delete any gate or switch in your circuit by clicking it. Click the OR gate. The gate together with the lines coming into it should disappear. Next, select the AND gate from the Gates menu. Click in the area previously occupied by the OR gate. You should see an AND gate appear in the grid cell where you clicked.