Description
                    
                    
                
                    Group layer names cannot be added into the legend.
                
                
                
                
                
                     
                        Cause
                    
                    This is a known limitation.
                
                
                
                
                    
                     
                        Workaround
                    
                    
                    Convert the legend to graphics and manually add the group layer name as a text graphic.
- Right-click on the legend and select 'Convert the graphics'.
 - Right-click on the legend graphic and select 'Ungroup'.
 - Add text for the group layer name.