Even better would be to have a way to tap into the search logic in order to provide custom rules.
Something like a TextModeSearchQuery event where you are given the query text and you have to provide a list of matching paths.

Add a property to control the History ToggleButton visibility

Command support needed in RadBreadCrumb

 The ItemTemplateSelector property doesn't work for the items in the overflow button's drop down

As a workaround instead of ItemTemplateSelector you can use the ItemContainerStyleSelector property of the breadcrumb.