You are correct, there are no default MIDI mappings. You must configure any MIDI mappings for your particular setup.
There is a Global MIDI mapping to toggle between Select and Perform Mode. Note that this does not cycle between all 3 modes, it will cycle between either Select / Perform or Bank / Perform. You’ll need to choose either Select or Bank mode first using the Pedal UI, or using the MIDI command to choose Select / Bank mode.
Let me know if you have any questions.
https://cdn.eventideaudio.com/manuals/h9/1.2.2/en/content/appendix/global.html