BLITZ TOURNAMENT

Allied units are not available for activation – they are just a picture and that's it... So, I think it's no longer possible in the current version...

But you have to try. It worked for us. There was no activation. I would drag a unit onto the picture of his army. My units would be sent there. And since he didn't have any empty slots and the unit was of a different type and couldn't merge with anyone, an exchange occurred. I was laughing at my HotS ally. He went to smoke, and I did this. And I kept quiet. When he came back and started playing, he entered his hero and saw one unit of each type there, like a gnoll, a dwarf, a goblin, instead of a bunch of his own troops, and he said: "Wow, what a GLITCH!!!" :) I should have seen his angry face :) I was even crying with laughter :) It's a shame if it's been fixed :)

PS. Well, I have The Shadow of Death version 3.0, which can't be patched. It works in it :) I checked, only between allied humans for speed. But it doesn't matter. But there, all foreign units are outlined with yellow frames when you click on them. And it's possible to send one unit at a time into the slots, even if they are of the same type. Check this trick with an ally on your patched version :)