Remove customization from dashboard tracker view

I made a Dashboard with a Tracker view to use as a filter inputs. I moved the Tracker objects around, and now it is considered “customized” and won’t let me add any fields to the tracker via the Tracker properties.

How can I remove the customization from the Tracker panel?

I’d prefer to not delete it and re-make it from scratch, or add the new field as a “custom” object.