keit,
I think much info that is not written in original user manual can be found by:
- getting all the PDF's with list of new features for all firmware updates that has been released during the years(latest 1.7.1 and older like 1.7.0,1.6.1, 1.6.0 etc)
- reading US Futaba FAQ on 12MZ
http://www.futaba-rc.com/faq/faq-12z.html
And on forums of course.
That is the way I try to keep all info for my 14MZ up to date.
/Bo