You can add custom properties to many parts of vRealize Automation, including approval policies, business groups, endpoints, and reservation policies. However, only the machine blueprints support the display options that you configure as property definitions. Adding a custom property to a blueprint as a simple way to verify that the custom property appears in the user interface as you designed it in the property definition.
Some custom properties are associated with the virtual machine blueprint on the Properties tab and some are on the Network tab.