Hi Fred,
It may have been me, I did buy a Hammond organ module for £200
I have only used it once as I have busy doing a lot of other stuff.
I do think it sounds great though.
below is the link to my first effort.
The Hammond organ module is only working on the top manual.
The Orla is supplying the lower Keyboard and pedal sounds.
it is possible to set the module up to supply both manuals and pedals
but I haven't looked into that yet.
https://www.youtube.com/watch?v=q2IdeBkAJ0g