On March 2, 2016 at 15:08, Duct Tape said...
they have been replaced by a single button labeled Main. this main button toggles back and forth between the watch and listen pages. you can hide one group of pages to make it so it doesn't toggle.
The two Mains are something I almost never use on an MX-780 as it winds up being confusing to most customers having the Main button toggle between options. Don't see me using it much here either.