add some features to booking script admin panel

I need the following things to be added to a booking script. Add in admin options: Default back-end language Default front-end language Front end languages Enable/Disable Spanish - Enable/Disable English When one or the other is disabled the front end language flag must not show for the disable lang Same goes for the backend language flags for the input fields, if the lang in disabled the flags must dissapear or must not be editable. Show booking steps in front end. Happy bidding!