Hi asbo - very true, but the advantage in doing everything inside the VI was I knew what exactly each trace represented (for reference, this is plotting the 10 hottest thermocouples out of 40+). While I could also pipe this information out, I'll then have to include some looping in the main VI to rename all the plots. I was hoping I could just leave all that inside the sub-VI. That said, do you think there's no way to accomplish my initial goal?
If all else fails, I suppose there's no problem piping out the data array, and an array of plot titles, and handling the titling inside the main VI - I'd just like to avoid it if possible.