Hello Steven
Merry Christmas to you too 
I’m sorry that I can’t help you in Dutch, but if you can handle help in English I’ll do everything I can to get you up and running with OpenRemote.
If you need help in Dutch, I can ask a colleague to assist.
I wrote the OpenRemote how-to which should be everything you need, but please feel free to post any questions you have.
The Velbus forum page is here :- OpenRemote.com intergration with Velbus - Free to ALL
The OpenRemote how-to can be found here :- github.com/openremote/Documentation/wiki/Velbus
OpenRemote and I can offer ready built OpenRemote controllers if you need one.
Best wishes and season’s greetings.
Stuart
MDAR Ltd