Hey Kevin,
Thanks for the tip - The reason why I didn't get the behavior I was expecting is because I was using cListOneToManyObj, which doesn't have the custom method 'ChangeBizObj.'
My need is (for child and grandchild bizobj's) a grid, with it's BizObj, directing the traffic of two grandchild grid's with their BizObj's - all of which are on the same page. The child bizobj is not edited but either of the two grandkids are (one or the other, but not both - I use a radio-button class on page one that determines which is editable.) I thought that cListOneToManyObj was the class for me but I don't know how to associate a bizobj with it. Is there a way? (Knowing you there's probably 5 ways to do it...) If not cListOneToManyObj, which grid class would you use?

Thanks again,