Alphabet Soup
Go to the Move menu and select Previous Card. Card one with student's letter will appear.
In the Objects menu, go to Add a Button and let go.
From the palette, choose the button type that contains the pencil icon.
Name your button and click OK.
The button will need a shape. Have students click and drag a circle around their letter. Once the shape is formed, click OK.
When the Actions dialog box appears, click Next Card (make sure that students have created their second card before creating the invisible button). Click Done. You will get a dialog box called Transitions. Click OK to use the default transition.
Click Done.
You have just created an invisible button!
To test your button, switch to the browse tool (resembles a finger) and click your button.