Specifies the options of Toolbar display mode. Display option is considered when Toolbar content exceeds the available space.

• Extended - Hides the overflowing Toolbar items in the next row. Shows the overflowing Toolbar items when you click the expand button.
• MultiRow - Displays the overflowing Toolbar items in multiple rows within the Toolbar, allowing all items to remain visible by wrapping to new lines as needed.
• Popup - Overflowing elements are moved to the popup. Shows the overflowing Toolbar items when you click the expand button. If the popup content overflows the height of the page, the rest of the elements will be hidden.
• Scrollable - All the elements are displayed in a single line with horizontal or vertical scrolling enabled.