How to map "settings" button to "recent apps" on Samsung Galaxy S4 with cyanogenmod On a rooted Samsung Galaxy S4 (SGH-M919 aka jfltetmo) running Cyanogenmod 11, how can I remap the leftmost hardware button so it brings up the recent apps list?
This is pretty easy to do.
Just go to Settings-&gt;Buttons and scroll down to Menu button. Below that you see Short press action and you can select your preferred action (Recent apps switcher in your case).

That's it. Depending on the developer of the ROM you may be able to remap other buttons as well.