The easiest way, IMHO, is to route the separate "tracks/elements" from within the plugin to separate outputs.
Then in Logic's Mixer window click on the "+" button at the bottom of the Kontakt Channel strip to create Aux channels fed by the outputs from Kontakt.
Now control-click on an Aux track and select "Create in Arrange" (or a similarly worded option).
Maybe these two threads would help:
Let me know how you get on.