My guide is a little outdated.
It does give a good overview of IS Boxer.

The examples in the Keymap/Mapped Key section, will get you comfortable playing around with the toolkit.
Many of the examples are done within the wizard by default now.
Lax listens to what people want, and regularly adds those features... plus a multitude of features, we don't even know we want until they're available...
Still... the click here, select this, do that... of my guide... it gets you an idea of what to click and where.