The documentation is unclear. When I run into this I have to check the documentation date which is today 3/9. So there may be an error in the doc or its something new that not fully avaiable yet.
I have never used Clone Animation before but what it seems to be doing is replicating the animation clip of a given object. But its not working well. It will generate the clip name and associate it with the original object. You can see this by looking at the animation clip in a PlayAnimation puzzle for the Green cube and looking at the number of cloned aniamtion clips.
The problem seems to be two things:
1. I cant seem to find a way to assign the animation clip to another object
2. The documentation clearly states, “Animation clip names correspond to objects to which animation is assigned in 3ds Max or Blender (only one animation clip can be assigned per object).” This is obviously not the case once you clone an animation as you end up with multipe animation clips per object.
Item two leads me to belive this function is not working properly.
Given your example the only way to make the green cube move is based on the puzzles for play animation as you have them if you are wanting to use an animation clip created in your 3D application.