[ul][li]Updated docs are being worked on. The updates are included as part of each new release. We've mainly been focusing on code-changes to deal with people's feedback after the v10 release but things are settling down again now, giving us time to get back to docs (and eventually new tutorials, too).
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[li]List of hotkeys: Settings -> Customize -> Keys. You can also use Help -> Keyboard Map, which takes you to the same place.
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[li]Filtering junctions: I don't think you can, but since junctions are almost always flagged with the System attribute, you can filter them out (along with other System files/folders) using this option:
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[li]PS: Please ask one question per thread. (Reasons here.)[/li][/ul]