title: How can I prevent a wpf ribbon group from fully collapsing without specifying all combinations of size definitions?
body: <p>How can I prevent a wpf ribbon group from fully collapsing?</p>
  
  <p>I realise there is a RibbonGroup.GroupSizeDefinitions property (it's discussed here: <a href="http://msdn.microsoft.com/en-us/library/ff701790.aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/ff701790.aspx</a>) and if I define a bunch of RibbonGroupSizeDefinition and none with isCollapsed=true it does close to what I want. </p>
  
  <p>Unfortunately I don't want to have to define the size definitions because the buttons shown will vary depending on the users license. eg. one client may get six buttons in a group and one might have four.</p>
  
  <p>So I want it to auto setup the groups but never go into fully collapsed - is this possible?</p>