Is there no way to list all key controls or "help?"

[NotRexButCaesar]

Question
The command "help" returns the error "Not a command", and I do not see anything on the website indicating a way to list key controls or help. Is there a method within the program to list the contextually possible key controls or if not that then all key controls?

[pit-ray]

The help command is not implemented yet. (#59)
So, for now, you can refer to the online document in website.