FWS's have been discussed many times and this thread
will explain a few things to know.
will show what might happen if the slide reveal is not checked.
On your Ford chassis it would be best to lift each chassis side rail individually so if you have AUTO LEVEL your chassis frame will not be twisted which can cause slide problem and even pop out your windshield.
On your jack pad the side arrows will operate the front and rear jacks, manually,. of the passenger or drivers side rails of chassis.
When operated the jacks will drop and first one hitting the ground will stop and wait for other jack to hit the ground than they will both lift rail to level position.
You would than lift the opposite rail.
These threads are from the QT's # 3 link
as all the links below in my signature will have info for your Newmar.
Also in QT's # 3 there is a section devoted to just the Bay Star models.
Enjoy the forum and safe travels.