title: Binding UI-element to UI-element like Textbox to Textbox
body: <p>I have UI-elements like a textbox and I want to bind them to a ViewModel. I need to access many properties of the textbox like the text- or the IsEnabled-property. 
  Is it possible that I bind the textbox directly to another textbox in the ViewModel with all their properties instead of binding every single property to properties?</p>