Explore the help topics, and if you can't find your answer or just want to say 'hi', please come by the forums (which are filled with friendly folk, we promise!) or email us.
We're always happy to help by Twitter, Facebook, and Google+ too.
There's currently no option to show the key again once you've closed it, but here's what it looks like if you need to check it out again:
You might also be interested in the keyboard shortcuts.
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