When you have declared a RadTabView with a single item and you try adding items at runtime - the new TabViewItems are added to the Items collection of the control but the UI is not updated.

At the moment when clicking the overflow button, a list of items is displayed in a Popup. It would be convenient if there is a built-in mechanism for defining a custom action upon clicking the overflow button. For example one might want to open a SideDrawer.

Presently the TabView only supports unbound mode and there is no way to bind a list of items from the view model to display as tabviewitems. It would be convenient if there is an ItemsSource property.

It would be nice to have an own configuration block for the selected item styling. This could be similar to the header template configuration.