Thanks for your reply. You must be using an old version of the manual; page 96 has the information about fat and narrow hull parameters.

At any rate, I'm quite familiar with that information. But that's also why I asked my question; the documentation seems to indicate that there can only be two hull sizes in a level, fat and narrow. Um, am I the only one who thinks that is a marvelously stupid limitation?

If noone can tell me how to set collision hulls for individual entities by the time I go home this evening, I'll be adding this to the wishlist forum.