The Keymap/Mapped Key section of my guide should help a bit.

A lot of those mapped keys are now integrated into the wizard, so redundant.
Nonetheless, they're written with the assumption that you know nothing about IS Boxer and want a step by step (hand held) approach.
Right click here, left click this, pick this option, etc.

The process, gives a decent idea of how the basic building blocks of mapped keys can fit together.
With that, any of the advanced topics covered by several others... becomes a lot easier to digest.