In Windows there is a program that sits in the tray and allows you to define application specific hotkeys for any program. Is there a similar program for OS X?
There is a certain program where I want to map w as the up directional key, s as the down directional key, a as the left directional key, and d as the right directional key. The application does not have this type of key mapping functionality built-in. How can it be done?