Last night, after having installed version 0.990 and starting a new game, I accidentally disbanded an army (my sovereign and a summoned creature) not knowing what I did to make this happen. Before sending what I thought was the army into an adjacent tile against a monster, I noticed my sovereign and the summoned creature were separate units occupying the same hex. "No problem," I thought, "I'll just combine them back into an army." The problem, though, was that I couldn't--for the life of me--figure out how that's done via the UI.
So...how do you combine separate units on the same tile into an army?
Also, is there a chart detailing the M&K commands?