SET-DEFAULT-HINTS!

set the default hints non-locally
Major Section:  EVENTS

Please see set-default-hints, which is the same as set-default-hints! except that the latter is not local to the encapsulate or the book in which it occurs. Probably set-default-hints is to be preferred unless you have a good reason for wanting to export the effect of this event outside the enclosing encapsulate or book.