Policies is a central feature in Castle for controlling automation and decisioning. In order to make it easier to see the impact of changing a specific policy, we've introduced a new view where you can easily compare how a policy triggers before and after your desired change. All this in the same powerful context of the Explore view. When you're happy with your modifications, you can quickly save the policy directly from this view.
To open this new diff view, just go to the policies page and click on the magnifying glass icon on a policy row.