I downloaded the Walkera V400D02 user manual.
Also the manual shows the heli setup with the WK-2603 transmitter.
All the models I have posted on this site are for a 3 or 6 axis Rx
and the Swash setting is for 1 Servo Normal.
To use any of them for your V400D02 you would need to change the protocol from Devo to WK2601 or WK2801 (I'm not sure which one) and you would need to set the Swash Type for 3 Servos (120* E-P-A).
The V400D02 servo settings are the same as the models I have posted.
All the other setting should work fine also.
Standard CP, Beginner CP, Master CP models should all work with a couple of changes.