It would seem the +/- controls are not defined, as they dont not appear as MFD buttons.
Also, if you select the MFD 'MENU' button, it would seem that the existing buttons are defined to either junk values, or assigned to values for a keyboard other than US.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.