ofxsimpleguitoo docs

Been playing with this addon, and it seems useful, but I wanted to find some quick info about the options I have when using it.
Is there somewhere that the functions/setup/usage is documented on the web?
I looked at the example, but there’s some things I don’t understand yet, like how to scale/move a group or individual controls. I can of course open up the ofsimpleguitoo header files and see, but the semantics of the calls are not obvious (for setpos, is it relative to a group or the window?)
I couldn’t find documentation on the wiki. Is there a reason I shouldn’t create a page for this? Does something exist somewhere?