Full Reference for Server Connect and App Connect components

I often feel difficulties with understanding which component does what. And there is often no documents on the component, or they are given very indirectly

Basic example, there are:

• Repeat component in App Connect
• Repeat Children component in App Connect
• Repeat properties in components like Table Generator
• Repeat Server Action

And there is 0 articles in the Documents describing what these elements actually do, only one tutorial.

I think, having a brief reference with an example for every somponent would be really, really helpful.