Soggy Jonny

Hi all, Brad, I wonder if you can help with some of the step-by-steps. I'm not very good with navigating the menus on my CTK-4200. Let me tell you what I'm trying to do. I got the MiniMoog app on my iPad (they've made it free for all us Covid shut-ins, so that's cool). It seems to offer Midi in/out. What I'd like to do is play those crazy sounds with my keys & speakers. There is a video of an Aussie Casio guy doing this on another model with Garage Band, so it seems doable. So here are my two questions: 1. How do I hook it up? I got a Lightning to USB-B cable, but it sounds like an Apple camera adapter is required also? Will I also need to run a cable from my iPad headphone out to the keyboard's 1/4" audio in jack? 2. What then do I need to press on the keyboard menu? I'm very inexperienced at this so please forgive my ignorance. The manual seems to be telling me to assign a Keybd Ch, then Navigate to that channel, then turn off Local Control so the sounds I hear are the ones from the iPad. Am I on the right track? Is there a specific guide of the order of which buttons to press to make this happen? Thanks for you patience. Stay healthy everyone.