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More experienced users will likely tell me I did this the hard way. It sure felt like it.
The LEDs on the screen indicate the the steps for several UNI-POLAR motors (nmbtc.com) that I swiped out of an old printer. I've tried this setup on several different Uni-Polar motors (6-wires; 2 sets of three) and it functions well.
I used a DAQ Express to wire the output to NI USB--6008. It uses the first four ports of the DO (p0.0, p0.1, p0.2, p0.3) to send the binary signal to the appropriate wire.
I never was able to figure out how to simultaneously have the LEDs and the motor output.
There is also a delay when changing directions; it doesn't fully change until the steps get back to Zero.
Example code from the Example Code Exchange in the NI Community is licensed with the MIT license.