NAIIS-User-Manual.Docx Page 20 10/02/2013 
4.5.2	Delete	nodes	–	user	defined	nodes	
 
Only user-added nodes can be deleted. To delete a node, right-click on the node and select “Delete child node” 
(figure 26). When deleting user-defined nodes, each of the child nodes has to be deleted first before deleting the 
parent node that was added. If a user accidentally deletes the parent node before deleting child nodes, an error 
message is displayed, and the nodes will disappear from the tree. However, the nodes are not removed from the 
database, therefore the user has to click on the “Reload grid” icon ( ) located at the bo ttom of the navigation tree. 
After doing so, the child nodes will re-appear on the tree. It should be noted that any data entered in the grid 
corresponding to the user-added nodes are also deleted from the database once the nodes are removed. 
 
Figure 26. Delete node 
 
 
 
 
4.6	Backup	of	data	files	
To create a backup of your data, you can export the data f iles and save them as Excel files. Please use the Excel 
Export function. (Section 7.1)