I have added another small usability enhancement to the ApexLib Framework.
When you call the API
it will register the keys Up and Down to navigate to the previous/next record in a Tabular Form. This should work for manually build (with Apex_Item) and also for the default updateable Tabular Forms.
It is by intention that the Up/Down key doesn’t work on textareas and select lists, because on that type of field the Up/Down is used by the widget.
Try it out on the ApexLib Feature Demonstration site.