Go inside the Workflow Guide and click on "Add Step"
Click on "Image Step"
Click on "Upload Image"
Pick a color from here and set the line width between "1-25" for the shapes you're going to draw
Click the "Rectangle" tool and drag the pointer on the screen to draw one
Select the Circle tool and draw as many circles as you want by dragging the pointer
Select the line tool and drag the pointer to draw it