I’m not sure I understand. Flex tries to support the model of Windows desktop apps.
TAB switches between controls or groups of controls
Arrow keys change the selection in a group of controls like a set of radiobuttons
RETURN dispatches a click event on the button specified by the defaultButton property on a container.
Yes that is the expected behaviour - (as well as [space] being an alternative to [return]).
What I have found in Flex though is that [Tab] and [Space] is working, but [Return] is failing to dispatch the click event.
In Flash both methods work, but in Flex the [Return] not working is a huge problem.
Is this a known issue?, or has my coder set a flag in his compilation that kills the required behaviour?