Gioco
Yes, a ZVV extension ticket aka Zone Upgrade for 4 Zones is your ticket. With that, you’re getting the additional zones 122, 121 an 110 (the latter counting as 2 zones due to its size and network density).
See also the => ZVV fare zones plan.
If using the SBB Mobile app for buying such an extension ticket, make sure to change the correct number of zones from the 1-2 zones default to 4 zones with the <Change> button before buying!