I am trying to add my iCloud vault to a 1Password install that is already setup successfully to use vaults in my family account, but the "Sync" option does not appear in 1Password Preferences panel. Also, the 1Password application does not appear as an option in the iCloud Drive options (i.e. System Preferences->Apple ID->iCloud->iCloud Drive->Options...)
Note that my use of iCloud sync predates my use of families and most of my stuff is in the iCloud vault. I have another system where both Families and iCloud are working. That system is running 1Password "7.4.1 1Password Store". In contrast the new system described above (no Sync option) is running 1Password "7.4.1 Mac App Store". Do I need a different version of 1Password to use iCloud sync?
1Password Version: 7.4.1
Extension Version: N/A
OS Version: 10.15.1
Sync Type: multiple