im not sure If I can make my own file type but ill set up my big rig tomorrow and see what I can get done on it Im snowed in ATM and a plugin like this would REALLY allow construct to become more of a multiple person project tool. It would almost allow for an integration of an art pipeline. however it would make it require an installer. Its likely that the first integration of this modified plugin would allow only for loading of individual files.
Bah, no fair, we've barely any snow here
I'd agree an installer and a way to properly use external files in general would be nice to have, and very handy for, as you say, multiuser development, or if you want to update things at a later date or offer patches but don't want a user downloading a huge executable each time. And to have them in some kind of package file, even if it's just the regular zip, like many other games often do now. But from what I've seen when it's been requested, it's probably a ways off if it's going to happen.