Thank you Erikari!
So, as I can see, I accidentaly found a way around to do something in Spine that I shouldn´t be able to do. That´s fine, but why should it have a limitation like that? It is SUPER usefull to have cloned meshes visible at the same time, and (as long as I don't close and open spine) it´s now proven that it works. Please make this not be a bug, but something I can use.
Your solution (duplication instead of clonning) do work, but it´s very limited, since they won´t share the same weights and mesh points in case I want to edit or animate the whole thing at once. I even saw some other posts in the forum requesting this feature from a lot of people. Please, this would help us A LOT!
P.s. Thanks! The Piggy is just one of the characters in our new game King Boom. So far, there´s an open Beta on android devices you can download for free.