Help need: FlySky FS-i6 i-bus and 8 ppm channel setups

Can some one help me?
I am planning to setup the pixracer with FlySky FS-i6 and x6b receiver, which use i-bus protocol. So, does pixracer with px4 and QGC support i-bus protocol from FlySky FS-i6?
The FlySky FS-i6 can support up to 10 channel with the new firmware update and the x6b receiver can support to 8 PPM Channel. Will the QGC with px4 stack automatic pickup all 8 PPM channel when I use it or do manual set it and how?
Thank you