What I’d like to do is to GET an inactive GameObject from another GameObject BY SCRIPT (no drag n’ drop in the inspector). And set it to active.
But with GameObject.Find() I cannot find inactive Objects.
Do you know how to find/get inactive Objects?
Transform.Find will return inactive GameObjects, so if you know the parent you could try that.
Otherwise, some script needs to know where it is and you can take the reference from that script to activate it. For example, have a script find it with GameObject.Find, store the reference, and disable it in the Awake function.