Users. What's a more common operation: rename this file, or open this file? I think if you did just a general survey of operations on a files, opening a file is

Users. What's a more common operation: rename this file, or open this file? I think if you did just a general survey of operations on a files, opening a file is vastly more common than wanting to rename it. (And including all operations, including those that might be done with a mouse. I think you should design the keyboard around allowing users to transition into being power users, s.t. common inputs are doable on the mouse, but faster (but obvious) on the keyboard.)