I have the following issue:
I'm adding an army through SM, I've created a brigade with four battalions and two artillery batteries. Now, as far as I know, formations under the same parent formation can support each other, and indeed, one infantry battalion, when dragged on top of another, gives support, however, I want the artillery batteries to support the infantry battalions, but whenever I drag them over to add suport, they are added as a sub-formation of the battalion. In practice, the artillery battery gets attached to the infantry battalion.
I'm doing a custom start on a custom-built system. The game hasn't progressed yet. Version is 1.4. Here's my DB: