There are two special MIDI configurations for facilitating the connection of GeoShred on iOS to GeoShred Studio on macOS, called Connect Send and Connect Receive.
You can select these MIDI configurations in the usual manner by just choosing them in the MIDI Configuration Editor, or by using the Connect: button at the top.
As the names imply, you choose the Connect Send MIDI configuration for the device that is sending MIDI, the sender, and the Connect Receive MIDI configuration for the device that is receiving MIDI, the receiver.
Connect Send and Connect Receive are very similar to the MPE Channel Mode MIDI Configuration, but audio is muted for the sender. Also, since some DAWs do not allow receive MIDI Program Change, Bank LSB and Bank MSB, these Control Change messages are used instead:
In addition, only the root note for arpeggios and mono mode intervals are generated from the sender
Certainly this can be also be accomplished by muting and unmuting the amplifier with a control surface switch, and setting all the alternative controllers for Bank MSB, Bank LSB and Program Change, but it's more to keep track of.