如何在UINavigationBar的右侧设置两个按钮？

I have made a standard Master-Detail application (with the Xcode template). I modified it, and now when I click one cell of the first table view the app shows another table view (which is the detail because is filtered by the clicked cell value). In a standard table view i would have this situation on the UINavigationBar:I have made a standard Master-Detail applicatio