The SplitButtonToolbarItem does not provide a SelectedItem property. Please provide an option to clear the selected item or a way to reset the text in the split button

Allow the control to

1. receives focus using the Tab key
2. display an indicator/border when a toolbar item receives focus
3. have a tab stop for any of its buttons

Allow the user to:

1.  tab into the control
2.  tab out of the control without being trapped
3. Shift + Tab navigate in reverse order correctly

The scenario should be implemented in the toolbar and inherited from the controls that use toolbar, like PDFToolbar

I want to change the ButtonToolbarItem Tooltip to an other value then the Text-Property value.

Style ButtonToolbarItemView
<Setter Property="ToolTipProperties.Text" Value="..." /> 

and

xaml
ToolTipProperties.Text="..."

both have no effect. Tooltip keeps showing the Text value

Currently, the ButtonToolbarItemView supports the following visual states:

• Normal
• Disabled
• Selected
• PointerOver

There is no visual state to indicate that the button is currently in a Pressed state. Implementing this visual state would be beneficial when styling the toolbar item.