问题 I am trying to push the limits of my understanding of the Fluent Ribbon/RibbonUI system in the Office 2007/2010 framework. Coupling that with my knowledge and understanding of XAML design for WPF/Silverlight, i wanted to see if i could dynamically show/hide the described Office Menu items below and it seems i have FUBAR'd something up. Please advise where i went wrong, or where i need to further develop: CustomUI.xml <group id="grpITOfficeMenu" label="Office Menu"> <button id="btnShowOffice"