Full Parameter List hidden? in MP 1.3.56?

I am trying to add a second GPS (an Emlid RTK GPS) to my RC boat. I have some instructions from Emlid that tell me to set some specific parameters Full Parameters list that should be available in the Config/Tuning tab - only it isn’t an available option when I click on this tab. I’m sure its just hidden - how do I make it show up ?

try Config/Tuning, then Planner, then check that layout is set to Advanced.