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Brian Tremblay <webmaster@tsmchughs.com> proposed that we add a way to connect <ol>s, as in <ol id="a">...</ol> ... <ol liststart="a"> or some such. But we could do it by repurposing start="", e.g. start="#a" or some such. See e.g.: http://www.tenmercer.com/recipes/prawns-app
This is custom elements territory these days. Or maybe CSS if they make it sufficiently extensible.