[janv]

In presentation - http://www.slideshare.net/veosotano/axr-presentation-betabee... - slides 12 and 13, including new elements creation (http://axr.vg/spec/chapter/55). Didn't find anything on parent property in spec, though. Nesting is also planned (slide 15)

[veosotano]

Sorry about that. It's not fully fleshed out yet. Are you interested in helping us figure out how to make the reparenting syntax as nice as possible? If so, I think the mailing list would be the best place for that... :)