How do I tie a Quarterly Priority to an Annual Priority?

Yes, Quarterly Priorities can be associated with Annual Priorities.  Select the Quarterly Priority (it will highlight green). On the right, in the Quarterly Priority details - click the pencil next to Annual Priorities.

This will expand a drop-down to select the Annual Priority you would like to associate it with.

The Quarterly Priority will now have a 'star burst with a number' to show it is tied to an Annual Priority.

On Annual Priorities, click the Annual Priority (it will highlight in green). On the right are the Annual Priority details and the Quarterly Priorities with the period that it is in.

On the One Page Plan, the Quarterly Priorities linked to Annual Prioirites will have the 'star-burst with a number' below the title.