Sure. Read the help on Multi Channel files and how to add a spot color channel.
Yeah, I'd done that, but I thought, "This can't be the way this works." But I guess it is!
No way to maintain layers in a multichannel file, huh?
Thanks for answering.
Since your design is mostly text, it seems like it would be much easier to create this in either Illustrator or InDesign.
It's an existing cover, we often scan this type of thing for one particular client. I was trying to get this to fit into that existing workflow.
I managed to get everything in there and save as an EPS, which when pulled into InDesign exports a PDF with the spot colors indicated.
I see I can't save as a PDF from Photoshop and I tried printing from there to the Adobe PDF printer but I got all CMYK. Is there somewhere I can make that save the spot colors?
If your photoshop file is set as cmyk with spot channels, instead of multichannel, you can save it as a pdf and preserve the spot colors. The CMYK channels will be empty, so they should not affect your final product.