1. Select Options | Customize Tool Bar from your main FN screen.
2. Highlight toolbar button you want on your screen from the "Available Toolbar buttons" column.
3. Select Add command button. It will move that choice to the "Current Toolbar buttons" column.
4. Repeat these steps until you have all the buttons you want on your screen.
5. Do just the opposite and Select Delete button if you want to take a toolbar button off your screen.

At any time you can also reset the toolbar buttons to the default settings:

Select Options | Reset Toolbar