Exercise caution before proceeding with unregistering of relationships. Unregistering a relationship can break the existing relationship in some forms. So, if you unregister any relationship, you'll have to remove all the references to those relationships in the appropriate forms.
To register or unregister a relation for a component:
In Application Designer, select Configuration.
In the Configuration pane, select the Edit Components node.
On the System Components tab, select a component, and then select Properties. All Properties and Property Relations for the selected component are displayed in the work area.
Select the Property Relations tab.
For example, select the File Part component and then select Property Relations. All the defined property relations for the component File Part are displayed in the work area.Select the Registered check box for the relation that should be registered and clear the check box to unregister the relation.
Select Close. This saves the changes to the draft data model on the Records Manager server.
NOTE: A sample scenario, describing all the phases involved in customizing, is included in Sample Scenario. For more information about setting custom properties as required and registering custom relationships in the sample scenario, refer to Phase 3 - Application Designer Edit Components.