Hi All,
I'm the guy from the MFM forum who did the DIY swap to his 2014 C-MAX Energi. Thanks for the link, bookemdano. Kudos to you, bakedpatato, for doing the same to yours. I can confirm I am experiencing the same issues accessing value charging on both the in-car Sync 3 screen and the Ford Pass app. Screens are not responsive to edits, same as you are seeing, bakedpatato.
My 2014 was originally a Sync 2 setup, but I upgraded to Sync 3.4 last year. Just for kicks, I reinstalled the old Sync 2 system, and saw the same thing - no edits were possible on the value charging screen. It had all worked perfectly with the old 3G modem in both Sync systems. I'm hoping Ford allows it to start working before the summer though, because I credit the ability to charge overnight in cooler temperatures for maintaining a good charge level and 20+ miles of range at full charge even after 75K miles.