Prosim737 soundset

Hello guys,

is anyone here who is able to explain me here the basics in FS2020 to create an own self-made soudset ?
I have a really nice 737NG soundset here for PREPAR3D and I want this soundset overtake or transform to MSFS2020 and use it with PROSIM737.

I know to this in PREPAR3D but with MSFS2020 and this additional xml-file in the sound folder beside the sound.cfg seems to be new for me.
Many big thanks for you valuable input.
Cheers
Pascal