Sure. In the touchscreen designer just copy the key from the review screen and paste it onto the main order screen. The touchscreens aren't standard, every distributer has their own way of setting up the screens, but the screens are very flexible so this shouldn't be a problem.
There's an option in Employee Classes on the Clock In/Sign In tab. Uncheck "Clock out with open checks". Managers will be able to override this for an employee if this is checked for the manager class.