The 121 Editor provides all the features needed to create complex thesaurus and classification structures.
Terms and relationships are displayed in an easy to reference treeview format. Adding, renaming and deleting are easily managed with a few mouse clicks and the following links to short videos demonstrate some of these features.
A major advanced productivity feature available in 121 is Hierarchy Builder. This feature allows hierarchy structures to be dragged from one position and dropped at another. The entire hierarchy, including all relationships, is copied when the drop operation is processed. The following videos demonstrate this feature.