Hi CA,
Thanks for the response. Yep, really in the weeds on this one and I did some additional searching on the forum and I found a great post by Captain Orso (who, BTW, should be on the very short list of people selected to write any future manuals for AGEOD games and NOT given a maximum page limit).
Captain_Orso's post:
"26 Jun 2013 10:40
The dates are:
Creating Divisions: 1861-Oct-01
Creating Corps: 1862-Mar-01
To create a division with a leader:
It must be the 1st of October, 1861 or later.
The leader cannot be the commander of an army, a corp, another division--of course--, nor combined with a brigade.
The leader must be activated--has the light beige envelope at the top left corner of his unit's picture-frame, and on the Unit Display when clicked.
If the leader meets these requirements, click on the leader and then on the Enable Division Command button to the left of the Unit Display in the Special Orders section in the Tab with the Tent.
You must now maintain at least one unit in your newly formed division. If you leave a Division Commander alone without any units and execute a turn, the division will be disbanded.
To add units to a division left-click on the division and then cntl-left-click on the unit(s) you wish to add to the division and either click the Combine-Units Special-Orders button or press <cntl><c>
To break-down a division to it's constituent units, left-click on the division then click on the Split-Unit button or press <cnlt><d>.
To create a corp with a leader:
It must be the 1st of March, 1862 or later.
The leader must have obtained the rank of Maj. Gen. or greater.
The leader cannot be the commander of an army, or another corp, nor combined with a brigade.
The leader is NOT required to be activated, but if Hardened-Activation rules are in affect, the leader must be unlocked.
The leader must be within the Command Radius of the Army Commander/HQ.
If the leader meets these requirements, click on the leader and then on the Attach Corp to Army button.
Your Corp status is maintained as long as you wish, regardless of if the corp is empty or not or within or outside the command radius of any army HQ or not, with one exception:If you transport a corp with Real-Transports™, either riverine or oceanic, the corp with be disbanded

leure:.
Ergo, if you want to invade with a corp, your invasion coastal/river region must be within the command radius of an army HQ. As soon as you drag-n-drop the corp commander from the transports to plot his move, you can recreate his corp, but only if he is within the command radius of an army HQ.
The army HQ may be on a transport to facilitate this."
So, armed with this information, I restarted the 1862:West scenario.
The starting date is Early Feb, 1862.
I see that in Montgomery, TN there is the Army of the Ohio and two corps (left Wing and Right wing). The corps both show the diamond in the group tab and the popup calls them corps.
Question 1: How if there can be no corps in the game until 1862-Mar-01, then how can these corps exist? Or is it that the date only apply to the grand campaign and the various scenarios can ignore these dates?
The fact that they do exist led to my expectation that I can also create corps. But I now think that this may be part of the reason I cannot when I am rearranging the forces under Grant in Henry, TN.
In Henry, NT there is the Army of the Tennessee (Grant) and 6 divisions, each with 1 divisional commander. There are no other generals in Henry.
There I had gone wrong before, but Cap-Orso's post has straightened me out is that to be able to form Corps (come March) I will need to pull apart all 6 divisions (already been practicing that) and then remove divisional command from at least 2 of the 6 (in preparation for them becoming the 2 corps leaders) and then recombine the remaining forces into 4 divisions and other stacks (Arty, Cav, supply) and then using the two freed up generals to become the corps commanders.
I think I have this straight now? Any comments on the above most welcome, especially if I am still misunderstanding a step.
Regards,