Here is the setup:
Modulators only work on tracks that have an audio channel in it: audio, instrument, effect, group,…
Load the MCCGenerator as an insert onto the audio channel. Create the connection of the modulator to the plugin.
Create a MIDI track. Assign the MCCGenerator as the input of the MIDI track. If you use Cubase Pro and defined External Instruments you can also create an Instrument track.
