Editing list of child objects in CellTable

I am trying to set up a CellTable with a HasDataEditor and it appeared
to work up until I tried to create an ActionCell column that launches
a dialog to edit a list of child objects (ex. My main CellTable edits
"Fields" and my dialog should provide a way to add "Attributes" like
read-only, enabled, etc. to those Fields). This dialog also uses its
own CellTable (although I suppose I could use a simple ListEditor if
need be) but the CellTable never seems to get any information.

I think I am having problems understanding fundamentally how this
would be hooked up and so I am asking

1. How do others usually deal with a situation of modifying lists of
child objects from their CellTable? Do you use a popup or is there
some way to edit them in place that I am not aware of?

2. Does hooking a CellTable up to a HasDataEditor work at all? I saw
old posts from the beginning of 2011 that suggested it did not but
they referenced a bug in 2.2 that appears to be fixed now.

3. If the q1 is "use a popup/dialog" and q2 is true, then how would I
set it up that the ActionCell knows to hook up the proxy it receives
to an editor? I couldn't think of it and thus produced the following
which is obviously wrong (given the error I stated in the paragraph
above):

ActionCell<AttributeListProxy> presentsCell = new
ActionCell<PresentsListProxy>("Edit...",
new ActionCell.Delegate<AttributeListProxy>()
{
@Override
public void execute(AttributeListProxy alproxy)
{
// Setup a dialog
// Pass in the RequestContext
// Start the driver
// Launch the dialog
plproxy =
requestContext.create(AttributeListProxy.class);
AttributeListProxy attributeEditor = new
AttributeListEditor();
attributeEditor .setRequestContext(requestContext);
attributeEditor .edit(plproxy);
attributeEditor .center();
}
});

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