Welcome to the forum Jack Lee and irv2.
If you go to QT's # 3 you will find information set up by Dutch Star Don down in his section of the link explaining the Oasis system.
Here is
one of his threads explaining operation of the Oasis there are more in the QT's information.
Here is a
Brochure and
Owners Guide for your coach.
Below in my signature are many other links in related info for your coach.
Enjoy the forums and safe travels.