From the Networks right-click options, you can select Update Data Fields to update the Network, Site or Device existing Data Fields.
Note: Data Fields are used to create attributes, and to assign values to devices. You must first have added data fields to a Network, Site or Device before you can update them. For information on adding Data Fields, click Adding a Data Fields.
From this option, you can select to update the following:
Network Data Fields
Site Data Fields
Device Data Fields