-Click on the red button in your scene preview window to get to the set-up window.
-Click on the cube to be in the object mode then click select all from your object menu.
-Click on the set menu right near the object menu (It defaults to “1”) and select (Set 0) to park all your objects there
so you can free set 1 or whatever set you used and make a clean start.
-Now select each object individualy and assign it to a different set. (1-2-3)
-Once back to the scene preview window select each set individualy again in object mode and click on recenter pivot at the botom of the set menu. This will enable you to rotate each object properly on its own centered axis.
Now you can animate each set in your timeline.
Salut.
Serge