Customize Picasa Buttons
You can customize the row of buttons that appear at the bottom of your Picasa screen by using the following directions.
The Button Manager can be accessed from "Tools" >"Configure Buttons." Using the Picasa Button Manager, you can add or remove buttons or change the order of your buttons. For example, if you rarely use the "Print" button, you can remove this button, or if you frequently use the "Collage" button, you can make that button first.
At any time, if you would like to include all of the original buttons, just select "Restore to Defaults." This feature is available under "Tools" > "Configure Buttons."