I think they should make them tranferable until used, but thier response will most likely be no response, as normal.
If you don't like something I post in forums, go to this website: www.magrareallydoesn't care.troll and fill out a frankie got his feelings hurt report
You can have 2 of the scrolls stacked, but not the 3rd, and yea, it's really a waste and it's really stupid how it was designed. Same goes to the Guidebooks. I have 2 different types but the 3hr cooldown applies to both, again it's really stupidly coded.