different behaviors on instances of a sprite

i got a sprite, withe instances on multiple layouts, as well as multiple instances on a given layout. on a layout i need one instance to have anchored behavior whilst the other instance of said sprite should not be anchored. when i select one instance and add or remove the behavior, it also changes the others. Can this be avoided?

I'd like to know if this can be done, too. Good stuff to learn. *open eyes to better hear the replies*