The MIDI inputs and outputs in your project are not directly linked to the physical MIDI devices. Instead, LiveProfessor has a MIDI input and output patch that allows you to assign a name to each input/output and choose which hardware device it should use.

To configure Midi Devices, go to Options > Audio & Midi Options > MIDI Devices. Any Midi Devices connected at program startup will be added to the patch automatically, with the same name as the physical device.

To manually add a new device, click the + button and select the hardware device in the Hardware Device column.

The list of devices contains the following columns:

Click in this column to enable or disable this device inside LiveProfessor.

This is the name that you choose to give to a device within the project. For example, you could label a device as "Keyboard 1" even if its actual name is "USB MIDI 123".

Click in this column to select the hardware device to use for this input or output.

This applies to Inputs only. Here, you can optionally select an output device to forward all incoming MIDI to.
Any MIDI messages received on this input will be directly forwarded to the hardware device selected in the Midi Thru column

You can save a default MIDI patch to be used by future projects by clicking on the Use As Default button. The default patch can be restored with the Load Default button

If you initially create your project using a MIDI device and later replace it with a new one, you will receive an error message from LiveProfessor when loading the program, indicating that a MIDI device is missing. This is because MIDI hardware is identified by its name.

To resolve this issue, open the MIDI Device window by navigating to Options > Audio & Midi Options > Midi Devices, and click the Hardware Device column for the missing device. From there, choose the new hardware device you want to use.