In the data dashboard of the Assemble Document mode, advanced legal users can save the set of data they have assigned to the datafields in the document for easy retrieval at a later time.
On the saved datafieldspage, you can see a list of all saved datafields.
You can delete an existing datafield collection by clicking the garbage can icon 
.
The refresh button 
can be used to refresh the contents of this page if – for example – it would not be showing a recently added datafield collection.