Importing multiple files in structure free

[justmull1]

I am wondering if you can import multiple wav files and have them mapped across individual keyzones using structure free. If I select multiple files in the browser and drag them to a new patch the "Import samples as new Part" dialog appears and asks me how I would like to map them. I hit OK but then either no samples are loaded into the patch or only one of the samples is loaded.
How do I, for instance, create a drumkit patch that has a single hit on every note?
Thanks