I've set up a very basic Electos site to test the systems ability to
meet the needs of a sailing club I'm in

So far so good. Basic setup is fine.

But.

how do I construct the site such that I can have a custom Webapp running
concurrently?

I'd like to have the "book a boat rental" Webapp on a page within the
Electos site.

Is there any way to do this other than

www.site.org/Main <-- default Electos site
www.site.org/Schedule <-_ different virtual directory for "rent a boat"

and if I do that, is it even possible to pass the same session between
the two logical sites?

Michael.