Gmail-like keyboard shortcuts in Mail.app (keys without modifiers) How can I create keyboard shortcuts in Mail.app that do not require modifiers?  For example, I'd like j/k to scroll the message pane.  Maybe n/p to navigate between messages.    Maybe N/P to navigate to unread messages.  Maybe a to archve a message.

The key point here is that the shortcuts should not require modifiers: No Command, no Ctrl, no Option.

The gmail shortcuts are different, but similar in that they don't require modifiers.
Try GMailinator. It's free and doesn't require configuration or start any extra process. GMailinator may not as flexible as keyboard macro software while if you're looking for exactly gmail shortcuts, it's a good fit.   

BTW, if you don't have Xcode to build from source code, the compiled binary could be found at release tab.