Many people have requested the ability to access multiple vaults. My request is different. I suggest allowing multiple people to log into the same vault with their own credentials. Passwords could be placed in different access levels, or possibly folders, which only users with that level of access could see.
I work in IT, and we have many many passwords to remember for all the network hardware, internet accounts, etc. Certain passwords, like onsite hardware, most of the IT personnel should have, while online accounts for purchases, etc, should be restricted to certain users. But the users should be able to update the passwords in one place and have them updated for all other users. This would remove the frustration of remembering which password is in which vault, or remembering to update the same password in multiple places.
Sharing folders with other users would also be nice. I have people in my life that I would like to share some passwords with, but not all.