[plt-scheme] GUI guides?

Would I be wrong in asserting that each of the major components of the
`GUI: PLT Graphics Toolkit' need a `Guide'? I'm at the moment wading
through the Editor portion (1.3 etc) and finding quite difficult. As
long as there were examples things were reasonably clear--- or at
least could be made so using the examples and with experimentation.
Regrettably, examples stop from 1.3.1 forward.

I'm perfectly willing to ask about each piece of information I need to
know; but I don't think I should have to. This is what manuals are
for--- how else can experts say RTFM unless the answers are there to
be found. :)

So could someone direct me to the link or links that I need?

--hsm