It is truly awesome. Thank at all~! There is two simple question.
1) Green star button was about "Upgrade or not" in HoI2. Is it now about "AI or not"?
2) If green star is the symbol of AI, we can activate AI any level I want by simply press "Green star" button (and assign objective)? (And if I want manual control a corps in AI control-Army, simply detach that corps from the AI control-Army.)
1) At the moment there is more than one green star in the unit interface. Who knows how it will be at final release
2) Yes, you can use corps, armies, army groups or theatres, or a mix of these. You can control some units in an area and not others. The only restriction is that all units below the one you order via the AI must be controlled by the AI.