Spot color in grayscale file

:confused: I'm looking for help to assign spot color (some at 100%, others as tints) of a single PMS color into selected areas of grayscale images. I understand how to use the spot color channel but I don't know how to assign tints of my color. When I import the images into InDesign, the color swatches show various instances of my PMS color and when I get ready to package the InDesign file, it shows duplicates of the color. Don't I need all instances of the single PMS color to separate onto one plate, while the black (and its tints) separate to another? I want a two-color end result. Any direction to information on this topic would be appreciated.

BobA said:

Don't I need all instances of the single PMS color to separate onto one plate, while the black (and its tints) separate to another?

Yes

When working on channels... I treat everything as grayscale, because if you think about it... It is.

That said, when working on your PMS color channel using different percentages of gray will give the the different percentages of the PMS color.