I’ve read: http://www.whatwg.org/specs/web-apps/current-work/multipage/editing.html#the-accesskey-attribute and it doesn’t say anywhere if or how the ‘Home’ key on a keyboard can be used as an accesskey in HTML 5.
Does anybody know anything about this, or if it’s at all even possible?
It can’t — only keys that enter characters can, and it is bad enough that you can hijack normal keyboard shortcuts with them with adding Home to the list of things that can be broken.