The 3.7.3 version of Controller Editor for Mac is provided as a free download on our website. This free Mac application was originally produced by Native Instruments. The program lies within Audio & Video Tools, more precisely Music Production.
From the developer:
With Controller Editor , you can precisely define which MIDI message has to be sent upon any action you do on your Native Instruments controller. This way, you can put your whole music setup right at your fingertips and remote control every MIDI-capable software or hardware from your NI controller.
You may want to check out more software for Mac, such as Draft Control, iLive Editor or PCR Editor, which might be similar to Controller Editor.