(7) That's called REVO. It changes the rudder command as you change the collective stick position.
What gyro do you have and does it have HH capability and are you going to fly in HH?
If you were going to use REVO at all, it would be when the gyro is in RATE mode. Most gyro instructs say to
turn REVO off in HH mode.


(9) Swashplate type .I-5 3-S or 3-E

It's 1-S (ONE-ESS) not I-5 (eye-five).

In the TX manual (PG 28) it says that 1-S: Independent aileron, pitch and elevator servos linked to the swashplate.
That's called non-CCPM for the informed.

OK ... just browsed through your helis manual (for both EP and Pro) it appears that you have a non-CCPM swash config
on the MX400 (ie Independent aileron, pitch and elevator servos linked to the swashplate).