substack question

[Brian Yennie]

If it _is_ order related, you could always unhitch the middle-level 
stack first, and then reconnect all three in reverse order?

i.e.

set the mainStack of stack B to empty
set the mainStack of stack C to B
set the mainStack of stack B to A

I'm not sure that will work, but a possible workaround?

Of course I'm curious, what is the advantage of having 3 levels of 
stacks?

- Brian

> Logically speaking, A exists when the app opens. B is sometimes 
> created,
> sometimes not.
>
> If B is created, sometimes C is created, sometimes not.
>
> C must be a substack of B which is a substack of A.
>
> So the order is required. If it is possible. If not I'll need to find 
> some
> work-around.