fairly new myself too, welcome
there are a few good threads on this already
best to think of the graphic arpeggiator page as an overlay to the other settings, the No2>4 parameters are faking a held chord (if you want)- what you can do with the mini keys is different to that which you can record (this applies to a few things, including legato)
i’m constantly amazed at the flexibility, but you have to keep exploring to find the potential and what works for you