Can't add location to an event

I see our Ward building in the list Settings: Locations . In total, the 5 buildings in our Stake are listed here.
But when I add an event to our Ward calendar, I do not see our building in the pull-down menu. Only one building of the 5 is listed as a choice.
How can I assign our building to an event.
(I am a Stake Administrator).

The most likely cause for this is that the location is not configured to allow events to be scheduled. To fix that, edit the location (Settings > Locations and Rooms, pick the location, and click the Edit link). Then make sure that "This location can be scheduled by Wards and Stakes" is checked.