i am trying to make one pivot to handle the movement of several objects, i think that it need to be simple but i cant do it.
i made the first object, polygon cube that i have been streched, i changed his pivot place(i took it to the center back of the object).first picture
than i group it and changed the center pivot of the group(that contains only one object) to the middle of the circle that i want to do. (picture 2)
i duplicate special it , in a way that number of the strech cube will make a circle, now i want to open and close the circle with only one pivot, and i want that the rotation of every object will be from the back center of the object(like the first object) how do i do it? please help