"Pin to Panel", "Remove from Menu" and "Uninstall" right click Apps menu options.
If a user right clicks an App name in the App menu, could you display a right click menu that would have a "Pin to Panel" option. There could also be a "Remove from Menu" option and a "Uninstall" option. If the user clicks the uninstall option, a popup should be display that would ask the user for confirmation.