substack question

[Brian Yennie]

Perhaps it matters what order you do things in?
IOW, if you want a hierarchy A->B->C then what happens if you attach C 
to B, and then B to A (rather than B to A followed by C to B)?

HTH
-Brian

> I tried testing, but I get an error saying that the stack I am trying 
> to
> make a mainStack "is not a main stack". That is why I was wondering if 
> I
> couldn't make another substack the mainstack of another stack.
>
> doug