Use the second person (you)
There is a requirement for an unlimited number or customized toolbars. These are toolbars that the user creates. The shell provides a mechanism for creating, modifying, and deleting these toolbars. It provides a way for the user to manually display and clear the toolbar from the viewing area.
You can create an unlimited number of customized toolbars. Using the shell, you can also display, hide, modify, or delete these toolbars.