ObjectPageHeaderLayoutData SAP SE A {@link sap.ui.core.LayoutData} element that can be added to controls used in the <code>headerContent</code> aggregation of the <code>ObjectPageLayout</code>. <b>Note:</b> This element is only taken into account when the <code>sap.uxap.ObjectPageLayout</code> control is used together with <code>sap.uxap.ObjectPageHeader</code> as value of <code>headerTitle</code>. 1.26 sap.ui.core/LayoutData If this property is set the control will be visible (or not) in a small sized layout. If this property is set the control will be visible (or not) in a medium sized layout. If this property is set the control will be visible (or not) in a large sized layout. If this property is set the control will display a separator before it. If this property is set the control will display a separator after it. If this property is set the control will take the provided size.