...
To add a new item price type, click the Create button on the toolbar. For details, refer to Adding an Item Price Type. For description of other buttons, refer to List Toolbar.
To view or edit an existing item price type, double-click the line with the item price type in the list. If you as a user use one of the price types more often than others, you can set this price type as the default price type. For this, select the line with the price type and click Set As Default Price Type on the toolbar. The default price type will be shown in bold font in this list, and the system will use it as the default price type in all documents that you will be creating. Also, you can change the default item price type on the Quick menu > Personal Settings form. For details, refer to Personal Settings.
...