In order to get the scrolling work properly you will need to set width of the RadMenu in pixels(see the demo here
). Can you please explain what you mean by saying it should scroll from left to right direction with some duration
since currently there is no property that specifies the scrolling duration. Can you also explain which buttons you need to center since in the markup you provided there is only the RadMenu control?
the Telerik team
If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed