Adding a second existing vault to Enpass from the cloud is a pain, especially on mobile devices. One has to insert the cloud credentials, the cloud url, and the vault password. However, I normally have all this info in one item of my primary enpass vault. I envision a feature where I can select an item within enpass and setup a second vault from this item.
Process: Settings > Vault > New > From existing item > Match elements of items, select cloud provider > Finished
This would also simplify the process of sharing a vault with someone else:
Create a pre-shared key and send via secure channel
Send encrypted enpass item containing cloud credentials and vault password
Import enpass item and decrypt with pre-shared key (only insert one password)
Select item and setup vault from cloud sync
I am looking forward to your reply.