Edit a Field's Properties

When you edit a field's properties in a layout, your changes only apply to the field in the current layout. You might want to do this to override a field's properties in a specific layout, for example, to mark a field as Read Only. If you want to edit a property so that it's the same in all layouts—for example, if you want it to be Read Only always— you should edit the field's properties in the Fields tab.