Node documentation and examples

Hi,

sometimes i am struggling with some nodes and the parameters (my personal favorite which i don't like is the "group by" node) and reading the documentation does not help me a lot.

Obviously  i searched the forum and the provided examples and whitepapers...but often there are still some questions...

I am looking for a good source of detailed documentation and examples of how the various options of the nodes work.

any hints are appreciated,

siebenund60

Hello, 

Have you seen the KNIME Learning Hub?

https://www.knime.org/learning-hub