The V4S Kiosk application is meant to show the current day's Jobs/Shifts. Essentially, V4S Kiosk is a replacement for the whiteboards and paper signup sheets for the day's Jobs/Shifts.  

If your organization needs any configuration changes, to show the future Shifts on the V4S Kiosk app, please contact the Salesforce Administrator at your org and they can send us the requirement for the custom work to show the future Shifts on the V4S Kiosk application.