I'd like to print multipage PDF jobs using JDF to specify different paper trays for specific pages. The paper tray changes are random and cannot be set per a consistent page pattern (every 30th page, etc.).

We have been able to create JDF Hotfolders for single page jobs but have no idea how to approach JDF paper tray setting for individual pages of a multipage job.

I have programmers on staff who can write whatever is required if someone can provide me with a starting point.