Modding & "vehicle facing arrows" for normal units

[LongstreetCSA]

Hey guys,

 I have been working on a total conversion for one of the SB games - titled Squad Battles - American Civil War - for a while now and due to the recent release of the map editors I am finally able to make proper maps to go with the units as well.

Anyway since formation facings are very much an integral part of the 19th century warfare I can not help but wonder if  there is any way to get a "facing arrow" (like they are available for vehicles) to show up for normal units as well? I have looked around but have not found any clues yet.

I appreciate any information on this subject, cheers!