Showing and hiding backgrounds
                                        1.  In the Network editor window, click the Edit mode icon 
.
2. In the Network window, click the Backgrounds button.
3. Click in the network display.
The Background objects administration window opens.
| 
                                                         Element  | 
                                                    
                                                         Description  | 
                                                
| 
                                                         Draw  | 
                                                    
                                                         If this option has been selected, the corresponding background is displayed. Tip Via the Check all/Uncheck all buttons you can select or remove all backgrounds simultaneously.  | 
                                                
4. Click the Close button.
The corresponding backgrounds are shown or hidden according to your selection.

