SmallMultipleGridTemplateAdorner.showClosestTemplateCellHint Method
        
 Shows a hovering indicator hint on the closest templateCell relative to toCheckRectangle.
 
         
        Parameters
        
            - toCheckRectangle
            
 
            - 
                
Type: Rectangle
The bounded area to check. 
            - alreadyIncell
            
 
            - 
                
Type: TemplateCellViewModel
Cell to ignore the check, even if this cell is closest it will not be returned