Is there a way to add special position/animation to an entity/player on MCPE ? If yes what packet i need to use ? This is an exemple (from MCPC)
Modify a hand, a leg is impossible. On MCPE 1.1, Mojang added the possibility to modify some animations, but I'm not sure the players is affected
It is impossible in MCPC too. It's not a human entity, it's an armor stand. Once armor stands come to mcpe, you can manipulate it's NBT tags to do that fanciness.