Patterns website and system clipboard [feature request]

It would be really useful to be able to select & copy code snippets from the patterns website. Currently dragging to select text in each pattern source is disabled.
Also a “Copy to clipboard” button which grabs a copy of the complete source for a particular pattern would be handy.
And while I’m putting in feature requests :slight_smile:, it would be great (particularly to users of this forum) to be able to get a persistent URL to an individual pattern. This would be perfect for pointing people to specific examples from here, without having to say things like “see the technique in pattern x (currently half way down page 7)”.