Some people is wondering how to set up a help like this,
This was been used to show help to people how to use or what does the block do.
Use a message, connect to the block in the block editor, then apply the changes to the block.
I hope this helps.
Congratulations on the first post to the new "How to..." category!
Very helpful. Didn't even know this was a thing.
Yoy!
Your welcome.