Defining the behavior of a control
Ensure that users see and complete only the fields that are relevant to their work by defining the rules that govern the behavior of controls.
For example, you can specify to hide controls that are unnecessary, mark a control as required to make sure that users fill it in, or disable a control in a situation when you want to limit the user's choices.
Open the view that you want to edit.For more information, see Accessing views in your application.
In the configuration pane on the right side of the window, hover over the control, and then click the Edit icon.
In the Visibility list, define the visibility of the control.
To display a blank area in the section when a control is hidden, select the Reserve space when hidden check box.The check box appears when you select any visibility option other than Always. Reserving space for a control prevents the UI elements on the screen from repositioning when the visible content is displayed.
In the Disable list, specify when the control is not available to users.
In the Required list, specify whether the control is required.