I'd like to disable the related tables showing in the pop-up. It is a 1 to 1 relationship, so I don't seem to have many options for what to display. This relationship is meaningless to the end user, so I'd like to turn off the 'Related tables:' area altogether. It just makes the pop-up more cluttered. The source database is a replica and the related tables share a feature dataset, so the relationship class can't be removed without ripple effects.