A user interface display provides selectable icons and a control symbol in a toolbar. The control symbol can be selected by a user to display additional selectable icons within the toolbar. The additional icons can be inserted adjacent the control symbol or in another location on the toolbar. A user can associate a set of one or more selectable icons with a control symbol. In one implementation, reselecting the control symbol removes the additional icons from the toolbar. In another implementation, the additional icons are removed when one of the additional icons is selected. If the icons are positioned adjacent to their corresponding control symbol, the display position of other icons on the toolbar is adjusted to allow room for the additional icons. When a set of the additional icons is removed from the display, the position of the other icons on the toolbar is re-adjusted.