Bob,

>> No... I don't think so... remember, the parameters only come in when you a querying the back end. <<

Perhaps I don't understand your answer. As I understand it, you are suggesting a child view param'd to the parent, and a filtered grandchild. Well, if I'm filtering the grandchild to the child, isn't it because I have all records relating to the top-level parent? And don't I get them by param'ing the view to the top-level parent, instead of to the child (it's own immediate parent)? It seems to me that this is what you are suggesting, please correct me if I'm wrong.

It's this idea of param'ing the view to any level other than it's own immediate parent that really blows up when you are seeking the general solution.