Install sequence in a bundle

Hi all.
I'm wondering if there's a install sequence in a HPUX bundle?
I'm trying to put many depots together into 1 single bundle, and use HPUX ignite to install this bundle.
But I have to make sure one of the depot is last installed.
I feel that if there're many different packages in a bundle, the install sequence seems to be alphabetically.
So I really want to control the install sequence inside the bundle. Anybody have any idea?