Can a Kontakt instrument's MIDI trigger another Kontakt instrument's samples?

Get the midi out into sonar onto a midi track and re point it to the other sample set.

EDIT - I have left my original reply below in grey as it may address a more general concept.
 
I have just called up Fingerpick and refered to the manual. I do not think its possible to directly output MIDI from Fingerpick either to another instrument inside Kontakt or to rout it to another VSTi in Sonar. All is not lost however as its possible to drag and drop the MIDI from Fingerpick into a Sonar MIDI track. It can then be routed to anything you want. See page 3 of the Fingerpick manual.
 
 
 
 
For VSTi that output MIDI you have to enable MIDI out when inserting the VSTi in Sonar. One can then route that MIDI to another VSTi (or another instance of the same VSTi)
 
I am not sure if Kontakt can output MIDI and even if I can the Kontakt instrument in question would have to be scripted to output MIDI. But assuming it does the procedure would be to use two instances of Kontakt with the MIDI out of the first instance driving the second.
 
A potential pitfall would be if the instrument relies on keyswitches or other controler information, this is common with guitar type instruments. For the patterns to sound correctly the second instrument would need to respond to the same keyswitches or controllers in the same way.
 
I am far from certain but it may be possible if you are an expert in Kontakt scripting to use the MIDI directly with other samples in Kontakt, but the vendor may have it protected in some way.

Glyn Barnes
EDIT - I have left my original reply below in grey as it may address a more general concept.
 
I have just called up Fingerpick and refered to the manual. I do not think its possible to directly output MIDI from Fingerpick either to another instrument inside Kontakt or to rout it to another VSTi in Sonar. All is not lost however as its possible to drag and drop the MIDI from Fingerpick into a Sonar MIDI track. It can then be routed to anything you want. See page 3 of the Fingerpick manual.
 
 
 
 
For VSTi that output MIDI you have to enable MIDI out when inserting the VSTi in Sonar. One can then route that MIDI to another VSTi (or another instance of the same VSTi)
 
I am not sure if Kontakt can output MIDI and even if I can the Kontakt instrument in question would have to be scripted to output MIDI. But assuming it does the procedure would be to use two instances of Kontakt with the MIDI out of the first instance driving the second.
 
A potential pitfall would be if the instrument relies on keyswitches or other controler information, this is common with guitar type instruments. For the patterns to sound correctly the second instrument would need to respond to the same keyswitches or controllers in the same way.
 
I am far from certain but it may be possible if you are an expert in Kontakt scripting to use the MIDI directly with other samples in Kontakt, but the vendor may have it protected in some way.

Thanks much for the suggestion on dragging/dropping MIDI clips from FP. I was familiar with that, but was bummed that you can only drag out one clip at a time, instead of an entire passage, or an entire performance. 
 
As pfl suggests above, Kontakt can output MIDI and recorded it to a MIDI track in Sonar. I'm going to experiment with that method, record a MIDI performance and try to trigger OTS, which resides inside Kontakt. (It's not possible to simply insert OTS on a track, like Guitar Rig.) Was just hoping I could maybe do all the routing inside Kontakt to streamline things, but I can't figure that out -- if it's even possible.