@jamesb, you're welcome!
As for the automation process with Bandhelper, the first thing you should do is sign-up for an account at;
http://www.bandhelper.com/. The account is free for 30-days, then it only costs $10 per year for a single user. If you sign-up before the end of the 30-day trial, the remaining days from the 30-day trial are applied to the yearly membership. I signed-up for a year within 2-3 days of using the software.
Bandhelper basically consists of the web app. which is much easier for setting things up, ie. creating presets, adding audio tracks, adding lyrics, etc. Then there's the mobile app. (which is free to download and use, once you create an account), runs on an iOS device or an Android device. If you plan to use Bluetooth to control your MIDI devices, then I would recommend the iOS option, ie. iPad/iPhone, etc. If you use Bluetooth, you need the Yamaha MD-BT01;
http://usa.yamaha.com/products/music-production/accessories/usb-midi/md-bt01/. If you don't want to use Bluetooth, then you need something like the M-Audio Uno;
http://www.m-audio.ca/products/view/uno. If you use the Uno, you'll need a 30-pin Camera Connection Kit for the older iPad's or a Lightning Camera Connection Kit, for the newer iPad's, so you can connect the Uno to the Ipad via USB. The 30-pin is hard to find, so check eBay, Craigslist, Kijiji (Canada), etc. I found the 30-pin version (which included the SD Card Reader) on Kijiji for $25.
30-pin
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Lightning
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I'm currently using an original 32 GB iPad 1 that I had sitting around doing nothing and it works great. The interface is a bit different than it is on my iPad Mini, but that's because the last OS for the iPad 1 was 5.x. It still works fine though. I found the Mini to be a bit small for me, in terms of using the touch interface and seeing lyrics on the screen.
The first thing I would do is go through the tutorials on the website;
http://www.bandhelper.com/tutorials/intro_videos.html. The videos are very good and you will learn everything you need to know to use the apps. This video in particular;
teaches you how to create automation tracks, which allow you to trigger the audio tracks and preset changes automatically. It's really slick.
If you're not familiar with the MIDI command structure, I would recommend reading this, Intro to MIDI for Pedalboards;
https://www.premierguitar.com/articles/19359-intro-to-midi-for-pedalboards. Then look at the examples I posted earlier in this thread and you'll get a feel for how to enter the commands in Bandhelper. In terms of controlling the Axe-Fx, all the MIDI information you need is in these tables;
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If you have any questions, please don't hesitate to ask and I'll do my best to answer them for you.