In Indesign is there a way to setup various tints or opacities of the same Pantone Spot colour as separate discrete swatches? It would be helpful for me as I would like to set up a Data Merge function that would actively search out different tonalities of said spot colour swatch in an automated way.
Select the PMS color that you would like to save a tint of.
Open your Color Palette and set the percent of the swatch to the percent that you would like to save.
Click on on the stacked lines in the upper right of the Color Palette and select Add to Swatches.
The tint will now show up in your Swatches Palette like this:
You can repeat this for as many tints as you want.