Set Default MGR for Rooms, Hull zones, Stair Trunks
        
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                Select .
            
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                 Click on Set Default MGR for Rooms, Hull Zones and Stair Trunks button  . .MGR mapping window will display.  Note:  Set Default MGR for Rooms, Hull zones, Stair Trunks
                        button enable only when user selected node in the tree view exist “Rooms,
                        Hull zones, Stair Trunks node.