It's been a while since this thread saw any activity.
I would like to agree that access to the gift bag content would be very useful, as it currently creates a barrier that prevents and noteworthy alterations of the campaign maps themselves.
As such, campaign terrain cannot be edited properly, at least not in any way I could find.
Since free space on the campaign maps is at a premium, this severely limits the amount of things that can be added.
I get that the whole studio is probably busy with BG3, but I would like to ask, if an update to the editor could be made after the bulk of that game is done.