I can't make this work with a family.
Whatever i try, the instances get a new Z order number relative to each other, not relative to the members of the family.
I would really aprecitate a working capx, Z sorting members of a family. A family that contains differend sprites.
Not that it is a big problem for me. I use rex_zSorter by rexrainbow. And lately i am experimenting with the Isometric Behavior by R0J0hound. Both have theire (normal) problems with stacked objects. Wich i try to tackle.