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I've just noticed this one and have solved the first two, so thought I'd post the solution.  Put the following in your Preferences | Key Bindings - User:


{ "keys": ["ctrl+shift+d"], "command": "duplicate_line" },
{ "keys": ["ctrl+super+r"], "command": "reveal_in_side_bar" },

I tend to use ZenCoding now for generating markup, but each to their own.