I wasn't sure where I should post questions for the AF5400. Maybe we need another forum?
Anyway, I just received mine as an upgrade to my 4500s. Presently, I have only swapped the MFD. So I still have my 4500 EFIS alongside the new 5400 MFD. It does look great and really nice to use. A few initial questions:
Does the 5400 have the six-pack panel screen/page? Unable to find it.
How do you change the knob list configuration?
How do you enable / disable pages?
Finally, I think I found a bug in the software. I have the baro set to millibars (since I am in the UK). When you touch the baro below the altitude ribbon, a set of numbers appear toward the bottom of the screen. However, it will not let you enter a new setting. Only the 2 and 3 keys are enabled (I assume this is a feature to enter a setting in Hg but of course doesn't work for millibars).
I am looking forward to installing the 5400 EFIS soon.