I am still a beginner to ExtendScript & JavaScript, but I am learning fast. Right now, I need to figure out how to tell InDesign to print specific pages of the active document using a printer preset and—here's the kicker—only using certain spot colors. (The preset already enables separations.)
Now I have followed both the Adobe InDesign CS6 JavaScript Scripting Guide on pages 47–51 as well as Jongware's guide on the subject. However, both only refer to turning on or off the Cyan, Magenta, Yellow, and/or Black channels (using the methods .printCyan, .printMagenta, etc.); there is no mention of doing so for any spot colors that exist in the document.
When using the Print dialog normally, you just select the Output tab and click the little printer boxes (basically checkboxes) next to each color separation that you want printed. Surely this can be replicated in ExtendScript, but how?