Basic knowledge question - commands

As a new user it does not seem obvious to me what the commands are, and yes I understand the basic concept of the visual recognition and the flexibility of it.

Is there a single list of commands and syntax anywhere as they apply to Sikuli? click, type, highlight, etc.

I would assume this would be in a "manual" of operation, however it isn't obvious where this is at first glance. Or am I missing a reference that there are well known commands (thus look at another source?).

I think it might be simple if the commands (or at least a quick selector of commands) was integrated as a menu / drop down menu etc (like of all things "excel").

As a newbie I will work around a lack of knowledge with inventiveness, but I would rather know what tools are provided and work smarter.