Well, we added a feature to select a MIDI Output device inside H9 Control and send the MIDI data from that device to a connected H9.
Some users wanted us to add a feature where H9 Control itself creates a virtual MIDI port which could be selected in another app and which could be used to send MIDI to an H9 through H9 Control. We did actually implement this, but when we were testing it internally, we found that it was causing a lot of problems and we disabled it. From what I remember, it was causing problems to have H9 Control run in the background mode while it was still connected over Bluetooth to an H9; when it was running in the background, the Bluetooth connection sometimes would get messed up and that sort of defeated the purpose of the feature.
