I know… it’s a lot of new stuff to learn with the new KNXv2 binding… but it works fine (better than KNXv1)
You can post your configs here if you would like. Make sure that you enclose the configs in code fences (```) to make them easier to read.
There are many other KNXv2 users here who can also help
What is confusing? Better to clarify in the beginning instead of correcting your KNX.things and KNX.items files later 