Thanks for the example! Unfortunately it's not quite the thing I'm trying to do. I can make it so, that if 1 or less is selected, then none can be dragged, but problem is with the DragDrop. I'll try to explain..
1). 2 different objects.
2). If I try to drag only one of them I can't to it (that's correct and done).
3). If I try to drag both of them (first one with touch0 and second one with touch1) only then it's possible (done).
4). They're not pinned together, they can be dragged individually (if both of them are selected) (done).
1). If the object1 is selected first and after that I select object2, then I can't drag object1 anymore because of the DragDrop what happens because at first only object1 is selected. (so I can drag both of them only when I touch both objects at the same time)
2).If I select both objects(touch both objects at the same time) and then release only object1 (for example) and select object1 again, then object2 won't drag anymore because there was a DragDrop when I released the object1 (selected < 2 and then it drops the object)
So I think it's not possible with DragDrop action unless there is a feature that allows automatic touch By that I mean when conditions met, then Touch.touch.
I've also tried with "set position". But it still drags the object (maybe the drag overrides the set position action or maybe I just placed it in wrong place)
Right now I'm out of ideas how to make it work, so I'd be very thankful if anyone finds solution