Use the Edit Mode options to customize your FBX UI preset. 
         
          
            Show/Hide
            
 
             This option activates or disables the visibility of a group or option in the UI. 
            
 
          
          
            Enable/Disable
            
 
             This option locks the group or option so that it appears grayed-out in the UI and cannot be modified. 
            
  
          
          
            View as expandable group/View as expanded Panel
            
 
          
          This option lets you set whether a group is expandable or not.