Generating arbitrary digital waveforms

Hello,

I'm new to the world of hardware-timed digital signals, so I'm unsure of how to proceed. I have a cDAQ-9174 and a NI 9474, which I'd like to use to produce two periodic, synchronized digital signals:

What's a good way to accomplish this? I found the DAQmx "Generate Signals" -> "Digital Output" task, but that seems to only generate uniform pulse trains, not the arbitrary waveform I'm looking for.

Thanks in advance.