How to Create a MIDI Map for the BCD3000 in Traktor Pro

Step 3 Control Types

-Hold: This is what you select if you want the key to press every time you want action. Ex: Pitch Bend

-Toggle: This is the common one selected for most buttons you want in on/off states. Such as the LED's. Ex: Play

-Trigger: Similar to hold. Press once for action. Ex: Loop Set

-Direct: Used for selecting fader, knobs, and jogs.

Reference:
(Traktor Manual, section 15.1.2)