Add support to show the system menu on the RadRibbonWindow element when IsWindowsThemeEnabled=False and the Shift + right mouse button is clicked on the icon on the taskbar.

Currently, the RadRibbonView control does not provide the functionality to merge different instances into one. We could add such an option to the RadRibbonView control.

Currently, the RadRibbonGallery control provides the PopupViewportHeight property that sets the Height property of the ScrollViewer, which hosts the RadGalleryItem instances when it is expanded.

We could introduce a property, for example, PopupViewportMaxHeight that will set the MaxHeight property of the ScrollViewer. This way, if the height gets higher than the value specified for this property, a vertical scrollbar should appear.

Currently, the RadRibbonTab GetChildrenCore method doesn't create automation peers for the element in the ContentPresenter for the TabStripAdditionalContent.

At this point, you can enable this by creating a custom AutomationPeer that derives from RadGridViewAutomationPeer and override its GetChildrenCore() method. This way you can manually create the peer for the AdditionalTabStripContent. This idea is shown in the attached project.

Add an option to assign a Style for the ScreenTip control. The option should be available per RadRibbonView and also per each separate element. It could follow the current ScreenTip settings concept where attached properties are used.

For example:

<telerik:RadRibbonView telerik:ScreenTip.Style="{StaticResource MyGlobalScreenTipStyle}" />

or:

<telerik:RadRibbonButton telerik:ScreenTip.Style="{StaticResource MyButtonScreenTipStyle}" />

Allow showing the Quick Access Toolbar (QAT) items in the customization drop down menu (the quick access menu). This is the menu that shows the "Minimize the Ribbon" and the "Show below the Ribbon" options. 

The new feature should allow to display all items from the QAT in the drop down. Clicking an item from the drop down should show or hide it in the QAT.

The attached project shows one way to get this behavior with custom code.

The attached project demonstrates a possible approach for handling this - by editing RadRibbonWindow's control template and specifying a converter for the PART_Icon Image's Width and Height bindings. The converter in turn takes into account the DPI of the current monitor.

If you place the RibbonView between two monitors and select a tab in order to display its minimized content, the popup with the content should spread on both monitors. This works in the common case, but when the dpiAwareness in the app.manifest file is set to  PerMonitor and dpiAware is set to True, the popup is offset outside of the RibbonView and it is displayed only on one of the screens.

Currently, the RadRibbonTab GetChildrenCore method creates automation peers only for the elements in its Items collection. There is no peer created for the element in the Header. Add support for this. 

This missing peer, leads to that the TextBlock in the Header of the ribbon tabs is not highlighted when using a UI inspecting tool (like Snoop and its Automation option or UISpy.exe).

You can find a solution that shows how to achieve this in the attached project.

would be very helpful especially for users who are new to Telerik and/or WPF

Currently, a ScreenTip is opened 500 milliseconds after you hover the associated item. This is a hardcoded value that cannot be changed. Add a property to change this. For example another attached property in the ScreenTip class.

For example: ScreenTip.InitialShowDelay="1000"

Currently, the titlebar text that appears when you set the ApplicationName is centered in the titlebar. Add option to align the WindowTitle element left or right in the titlebar.

The backstage of the RadRibbonView cannot be opened when the control is placed inside a WinForms application. 

Currently, the minimized content of the ribbon opens up in a Popup element which leads to issues when positioned between two (or more) monitors. Introduce a feature that allows the content to opens in an Adorner element. 

Add thin border in the RadRibbonWindow between the Tittle and RibbonView.

We want the look of the window to be identical to how a non-implicit RadRibbonWindow would look (i.e., without the Themes directory with the style XAML files). Alternatively, if the title bar is taller and the borders are as thick as a normal window (e.g. Notepad), that is acceptable too.

Expose a property to control the visibility of the backstage back button.

This feature is similar to the IconTemplate of RadMenuItem. There should be two templates - one for SmallImage and one for LargeImage.

Implement keyboard navigation for the items in the ApplicationMenu - through arrow keys for example.

Every KeyTipControl is placed inside a Popup. Expose properties which could control the Popup position.