We often use InDesign for packaging artwork (please don't lecture me on Illustrator being more suitable, there are plenty of reasons it's done this way) - typically a 6-faced box has at least two faces 'upside down' and often the two end plates are at 90° and 270° to the main plane.
Typical workflow is to set up the main face elements, then copy them as a group to the corresponding face on the other side of the box, or on the end, and edit from there: it would be handy to be able to rotate the drop shadow as we rotate the artwork. As it is, you have to manually rotate the drop shadow angle, God forbid you accidentally leave the 'global light' checkbox ticked. Not the end of the world, but something that could easily be handled with a checkbox.
A handy new feature?