To set the tabbing order for the main window of the Investment application, follow these steps:
Notice that you can tab to all of the entry-type fields, the radio button set, and the checkbox, but you cannot tab from the check box to the push buttons. You can use the arrow keys to move from the check box to the push buttons.
Close the test window after you are done using it.
Now, you can use the tab key to access the Toggle button, instead of just the arrow keys.