Devo 12S and channel numbers

I´m trying to program my Bavarian Demon 3SX via dedicated software. Programming software requires channel assignment for aileron, elevator, c. pitch, tail, throttle/BEC, Output 2, Tail Gyro and Head gyro. Numbers are from 1 - 8. What are the respective channel numbers at the transmitter end?

And bonus question, anyone knowing what is the data port for Walkera RX1002 receiver? AUX 2?

Thanks!