This screenshot shows the Add Package Object Privileges page. At the top right-hand corner of the page are the buttons: Cancel and OK. Below the buttons are:
A Select Package Objects field with a flashlight icon and the text "(SchemaName.Package...) Select object and then choose privileges to assign"
An Available Privileges list with EXECUTE displayed
A Selected Privileges list
The following buttons between the lists: Move, Move All, Remove, Remove All
The buttons and at the top right-hand corner of the page are repeated at the bottom right-hand corner of the page.