Hi Lucas,
This is a little bit tricky, as it involves several build arrays. I made this one using a shift register to store the temporary 2D array, and a build array to concatenate inputs each time around the three iterations of the for loop.
Also, make sure transpose array is not selected. Check out the attached example (LabVIEW 8.2.1) and let me know if this is what you are looking for!
Best regards,
-Sam F, DAQ Marketing Manager