Diff node has as new option which allows you to pick which fields to use in the transformation saving you valuable time by streamlining navigation.
The Diff node allows you to check the differences between two versions of a source.
Use any of the Transform buttons to open the list of nodes and type Diff. Then you can start selecting Fields.
Use the Fields to Diff section of the node. First pick an option from the left dropdown.
Note that the field selector drop down ( on the right) will be disabled when selecting all.