Hi Jason,
You can't directly send a waveform to the NI Script Editor because it is an application that helps you build scripts. The script is basically a text file that gets sent to your hardware as a string. This allows you to programmatically add the waveform information to your script string before sending to the hardware. So, you could still create a script with NI Script Editor, then programmatically concat the waveform information to the specific locations desired and, lastly, send that string to the hardware.
Let me know if you have any questions.