I'm trying to use a PTZ controller from an old CCTV system as a DAW controller, like this one:

It's not MIDI. When i press some buttons or move the joystick, it sends a combinations of key presses to the computer. It's just like using a normal keyboard to control Waveform.
I'm almost sucessfull assigning key shortcuts, but some of the buttons use functions keys from F13 to F24, which Waveform doesn't understand. It stops at F12.
For example, one of the buttons is a combination of "ctrl+F13", but Waveform only assigns "ctrl+". It doesn't read the F13 function key.
PS: I'm using the great Keypose to see which keys are pressed. http://sumtips.com/2012/05/show-key-pre ... creen.html
