Unable to move midi from Cognitone Drone to Cubase 10.5 track

Hi,

I am following the instructions in the video (https://users.cognitone.com/tutorial/synfire-daw-cubase).

Everything works as expected; I am hearing sound on Cubase. But when I try to "Export MIDI from Drone" I am not able to do that. See attached image. I am trying to click on "01 Vienna Synch VST" but it is disabled.

What am I doing wrong ?

Regards

Ram