I'm not sure what exactly you would want to do with such an interface. What kind of manipulation or handling are you talking about?
Hi Ashley, thanks for answering. It's been a while so I don't remember exactly what problem I was trying to solve, but from what I can recall I basically wanted to iterate over all instances of a family with JavaScript, just like you can with the For each System condition. I happened to solve the problem without using families anyway, but that was it.