found this:
Assigning MIDI Notes Or Computer Keys
Clips can be launched using MIDI notes, either from a keyboard or trigger pads, or from computer keystrokes. Most of the Clip launch modes (all but Trigger) make more sense when you take this option. Assigning MIDI keys/pads or computer keys is very straightforward. First, choose Edit MIDI Map, or Edit Key Map from the Options menu. All assignable objects in Live will turn blue (in the case of MIDI mapping), or an odd pinkish colour (in the case of Key mapping). Click on the Clip you wish to assign, then play the MIDI note or press the computer key you wish to map to it. When you've finished assigning Clips to keys, exit the mapping mode by unchecking it in the Options menu. In addition to its other advantages, using a MIDI keyboard or pads to trigger Clips allows you to use the Velocity (Vel) percentage setting in the Launch Settings box. This alters the volume of the loop based on the velocity of the Note On message that triggers it.
couldn't get it to work though....maybe I was just too tired last night....might have missed something
