I need to adjust/rotate the axis of the object, not affecting the object rotation. Only rotate the axis. Is it possible, and how?
Explanation: As you can see on the image. I have a network of balls and connectors. I duplicated these elements using Shift+D and then rotated and adjusted so it all creates this network shape. Now I want to continue duplicating and adding more to the network, but now the axis are all messed up already. As drawn on the image, I can't rotate the one connector down anymore (marked in red). The axis are messed up. So I need to adjust the axis, so I can rotate around one of the axis, doesn't matter which one. I know about the Transform Orientation tools in the N panel. But I can't find any element which would produce the correct axis rotation.
Side note: The build up of the network is animated. In fact the connector has to build up along a correct axis. I do it using shape keys.