pressure:
I finally connected the H9 thru Bluetooth on my Mac but I don't see a way to register the H9. How will I know when it is registered?
When you connect your H9 to the Mac the first time, it should ask you for your Eventide username and password which will register the device to your account. You can double check that this happened by clicking on Settings in the bottom right hand corner of H9 Control and go to Eventide Account. You should see your Eventide account information including your registered devices (H9s and any Factor pedals).