Is it possible to configure oXygen to do the following:

1. DITA user adds a <menucascade> element.
2. With the cursor within the <uicontrol> element, the users presses Enter. RESULT: Another <uicontrol> element is inserted.

By default, in this scenario, oXygen inserts another of the element that contains the <menucascade> element -- which usually is not desired in this situation.