Oh no…A big mistake from my side!
I try since hours to connect my new Yamaha Montage with Cantabile.
The Montage comes with a pretty good VST3 application “Montage Connect” in order for easy handling the synthie via DAW.
Now I see this posting here, that Cantabile can’t handle VST3.
So…what to do? Give the Yamaha Montage back? I doesn’t make sense to control everything via Cantabile, but the “main actor” can’t be controlled 
I never expected, that this don’t work with Cantabile, even the Yamaha Montage is not really new on the market.
Is there a workaround in order to use the standalone “Montage Connect” windows software together with Cantabile?
The software works e.g. with .X7B files for store/save and recall. Could I send this X7B files from Cantabile to the Montage?
I’m not sure so far, that is stored behind the X7B files beside the performance (loudness?).