Is there a way to get prototypes to save somewhere other than (on a Mac at least)

/Applications/Max5/patches/object-prototypes

?

e.g. in a user’s home space. Allowing a user to change the ‘Patches’ entry in File Preferences to a custom location would be one way but this doesn’t seem possible?

This is due to running Max in a multiuser environment where the user’s privileges won’t allow writing to
/Applications/Max5/patches/object-prototypes for obvious reasons. Plus the users will probably want individual prototypes.