This is attacking a problem that needs a lot more attention: how should footnotes (or endnotes or whatever) be handled? In other words, what is a good way to handle the addition of optional material in an otherwise linear text?
That said, looks like a nice idea. Not sure how much I like this particular solution yet. Thanks for posting.
That said, looks like a nice idea. Not sure how much I like this particular solution yet. Thanks for posting.