Moog Prodigy MKII: input jacks questions

Hello, first of all thanks for reading the post.

I’ve just buy a Moog Prodigy MKII and i’m not sure of how the input jacks works.

I know that the “kyb in/out” is for external control but im not sure of wich part of the stereo jack controls each function (Same with the S-Trigg). I think that the “vcf in” is for processing external audio but im not sure if it has more uses. With the “osc in” i’m more clueless, is for adding another oscilator or it changes one of the already existing? And for last the “sync in”, i think this is for syncing the LFO but how does it work?

I also have 2 moogerfoogers, the lowpass and the ring modulator, so any suggestions of how can i use it with the Prodigy will be welcome (I cannot use them right now so i can’t test the inputs thing).

Thanks in advance, and sorry for my English!