it's probably not much more difficult than plugging the cable in and a tiny bit if menu diving to get a midi keybooard to cnnect too the hermod etc - I think the manual was decent when I was looking - so that's probably a good place to start
can you post a link to the mixer? what is the full chain you are intending on using?
"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia
Utility modules are the dull polish that makes the shiny modules actually shine!!!
sound sources < sound modifiers < modulation sources < utilities