Closes either the selected schematic or graph, depending on argument given.
Close schem|graph
| 
                             schem  | 
                        
                             Use schem to close the selected schematic.  | 
                    
| 
                             graph  | 
                        
                             Use graph to close all graphs.  | 
                    
| ▲ Command Summary ▲ | ||
| ◄ ClearMessageWindow | CloseGraphSheet ▶ | |