You can declare PageSelector or GeneriPageSelector control in your template. To open a selector inside a dialog you can add an href and subscribe for "click" client side event and open it in a RadWindow.
the Telerik team
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items