= Small fix mods =

It seems to be mainly in the map's .hdb file, if my memory serves me right. There should be a setting somewhere in the hero's parameters, for the hero you want to disable auto-combat for. I think I adjusted this when I was customizing the ROMMI remaster. Look for it there in the meantime, if you need it now. Or wait until I find it for sure and write it down, or until ROMMI logs in and writes it down himself.

Added 6 minutes later
Yes, it seems to be it. In the main .hdb file of the map (usually the largest .hdb file in terms of size), look for the line "true" (true/false); it seems to control this. Basically, false means you fight, and true means you can use auto-combat.
P.S. And yes, this applies to each hero on the map from the Campaigns. So, pay close attention to which hero you are editing.