I've had the "standalone"/non subscription-based version of 1Password for years, and recently upgraded to the Pro version because one of the features it said it included was the ability to create and share multiple vaults. I've created an additional vault w/ no problem, but I can't find any option to share the vault without creating a families subscription.
1Password Version: 6.8.8
Extension Version: Not Provided
OS Version: OS 10.14.3
Sync Type: iCloud