Some time ago I've made some changes in IDEA codebase to improve the usability of second keystrokes (i.e. pressing Command+R then R again). So I started to figure out a new keymap for the default Apple MacBook layout (with special feature keys instead of function Fn keys, etc).

Changes within the second keystrokes include:

• Popup for available second keystrokes (press Command+R and wait a moment)
• Ability to press the second key with the exact same modifier key as the first one (i.e. pressing Command+R then Command+R is exactly the same as Command+R then R)

I also like an idea of mnemonic rules, e.g. Command+R for Refactorings, Command+F for Find, Command+N for Navigation and so on (see xml file for full list of mappings).

Copy MacSekondKeystroke.xml to ~/Library/Preferences/IntelliJIdeaXX/keymaps where XX is IntelliJ IDEA version number, i.e. for IntelliJ IDEA 12 the path will be ~/Library/Preferences/IntelliJIdea12/keymaps.

To enable second action popup you should go to Registy (by pressing Command+Option+Shift+/, choose Registry) and check actionSystem.secondKeystrokeAutoPopupEnabled

Any ideas or suggestions? Please mail me at [email protected]