A tab control usually displays all available tabs. Using the Scrolling.Style property, a tab control can be made a scrollable tab control. For a scrollable tab control, only one row of tabs can be defined (see Tabs.Rows property).
The scroll buttons are used to scroll tabs left or right. In a tab control with a vertical orientation, tabs are scrolled up or down.
The Scrolling.Picture property can be used to change the graphic used for the scroll buttons.