In order to create your own button, you will need to be signed in to Yahoo!. Once you're signed in, click the "Toolbar Settings" button (it has a small picture of a pencil on it) and choose the "Add/Edit Buttons" option. Then select the "My Own Button" option.

You will also see a "Change Layout" button on this page. Click this button if you would like to rearrange your buttons on the Companion toolbar.

Remember to click "Finished" to save your settings. You should see your button changes soon after.

Locate the button on the Yahoo! Toolbar and then follow the directions below:

1. Click the down arrow to the right of the button and select "Edit Button…"
2. This will allow you to assign a title, URL, and icon to the button.