The tab opens a page that shows all of the effective constraints and facts for a Grid object. Each Grid object has an associated set of facts and constraints that define its properties. By changing the policy constraints and fact values for a job, you can change the behavior of the job and how the Orchestration Server allocates available system resources to it. The Orchestration Server assigns default values to each of the component facts. Facts with no mode shown can be changed at any time by the administrator. Facts with mode r/o have read-only values, which can be viewed by using the pencil icon, but changes cannot be made.