If you're looking for more training courses on KNX and KNX-related topics it's worth monitoring the KNX Association for their webinars. They offer lots of online live presentations about both technical as non-technical matters you can follow from behind your computer and interact if you have questions.
Please see below for a few selected recording from the past sessions.
Would you like to join the next online presentation?
All webinars are offered completely free of charge. All you need to do is register well in advance, as there are usually some registration limits. Follow the link to subscribe for the upcoming session: