Changes

* All custom fields stored on all the '''Custom Field Tabs ''' are loaded when the page loads.* Custom fields stored on '''Navigation Bar Tabs ''' are not loaded until the relevant tab is selected.

* '''Custom Field Tabs''': you can switch between them without saving. You must save the entire page, which saves all Custom Field Tabs at the same time.* '''Navigation Bar Tabs''': you must save the current page prior to switching to a different Navigation Bar Tab.