I'm trying to use an app that places the hamburger menu on the system bar (with Home, Back, and Recent apps buttons). On devices that have a system bar (i.e., these buttons are on the screen), the menu is easily accessible. But now I'm trying to use the app on a device that has physical Home, Back, and Recent apps buttons. The system bar isn't shown, so the menu is apparently inaccessible (where it would be is off the screen). Is there a way to still access this menu when the system bar isn't shown?