Can you please clarify your setup?
It sounds like you are currently using the MobileSheets app to control your pedals, correct?
But you are asking a question for how to send MIDI from the H90 to control the app. So are you trying to change the setup so the H90 controls the app instead of the app controlling the H90?
I’m not familiar with this app so I can’t provide much help with how to program MIDI from the app.
On the H90, you can send PC messages whenever you load a Program as long as MIDI out is set to transmit.
If you have an aux switch connected to the H90 and you would like to pass thru the aux switch as a MIDI CC message, you can find information for how to do that here (System > MIDI – Transmit): https://cdn.eventideaudio.com/manuals/h90/1.9.7/content/system-menu/midi.html
This setup sounds a bit complicated so I’ll need you to provide as much information as possible for help configuring this.
