The Flying Column

[Aurelius3]

I have an illustrated guide by Laband to the Anglo-Zulu War. In it Laband describes the British "flying column" crossing the White mfolozi River and deploying on the plain in "extended order," forming the front half of the square at the proposed campsite, then the rear half forming behind that. This completed the square. I have several questions:

1. Did the square move as a complete square at any time during the campaign(s)? If so, what would that movement have looked like (I have drawings of the static square, with details about entrenching and corralling the animals, etc, so those details are not in question). I am curious how a fully formed flying column/square actually moved.

2. Assuming a half-square, what does a half-square moving in extended order look like?

3. Assuming these movements were not terribly structured, i.e., they were instead glorified single or double file columns, how did they assemble them into square fast enough?

In other words, does anyone have some detail about how the squares actually moved and formed in the open field?