How to remove an exclusion from an Intensional reference set.
Prerequisite steps: Log in to Reference Set Tool 2.0; From either Library or My Reference Sets in Dashboard and choose a reference set; Reference Set - Editing a reference Set (Author).
From the Manage Reference Set dropdown, choose "Edit Metadata".
In the Edit Reference Set Metadata modal, click the button (icon is a rounded square with a “minus” symbol)l to "Remove Definition Clause".
Click "Update Metadata" button.