Steve:
>Seems like a mover won't work on the frmDataChild.
I have just created a parent frmDataManager calling a frmDataChild with a cntMoverListPair. I have queried a table and populated an array which I have used as the source list array value. The mover works as expected. I can move data individually or totally (all items) back and forth between the two lists. I can drag and drop list items both-ways too.
It would appear that your problem lies elsewhere. The mover gadget does work on a frmDataChild.
Best
-=Gary