Thanks for that Rico, just a curiousity, but why multiple cdp's? Simply due to the size?
Because when you export your route, CM only exports the route. Nothing else.
You then have to show dependencies in CM, for the route. Sort them by type, and then export in groups.
CM won't export dependencies, 1st, 2nd, 3rd level, libraries, all that needs to be exported in separate CDP's. Well, if you have all the deps showing in CM you CAN export all the root level deps in one CDP.
Export all the locally modified assets to one CDP, then all DLS stuff, then Built-ins.
A session exports with all locos, rolling stock, signal and switch settings, A.I. commands, session rules etc.
If you, for example, highlight all the main deps in CM, then right-clik > show dependencies, you'll have all the 1st level deps in a new window, which you can export in one CDP, and so on.
Exporting to smaller CDP's which are organized by type, i.e. Locally Modified, External deps (from the web) and whatever other category you want to use, allows you to manage everything better.
If you need to use the CDP's at some point, then you'll know where any particular sub-set is.
If you've ever downloaded any routes/sessions from TrainzItalia, that's how they're organized.
The Rollins Pass Winter 1910 is in many parts.