From the description given, Rosenberg's IV Korps appears initially to be heading towards Dunzling. Could such a formation be ordered to counter-march back towards Hausen, and if so how would it be accomplished in the rules?
-Yahoo Group, 6/12/17
A column marches from its head, so it could turn and circle back. Another solution for “about facing” a column would be to deploy and ploy facing the other direction.