While this is not set up the same as the 14MZ it can be made to mimic it in a way.
You can either just use the Timer screen as your main screen while flying, or you can set the S1, S2, S3 or S4 key to take you to the Timer screen, and while on this screen, you can do as on the 14MZ and tap the timer with your finger to start it.
We will pass this suggestion on to Futaba Japan for the next software update.
Sincerely,
Krysta
Product Development & Support Specialist
Futaba Service Center USA
[email protected]