How change cmyk global color swatch to spot color?

[Thomahawk]

Using Publisher 2.0.4 on Mac Monterey

How can I change a cmyk global color swatch to spot color? (for printing pantone instead of cmyk)

I have a large document with color swatches used for the whole document.

[lacerto]

Obsolete.

[thomaso]

In addition to @lacerto's hints: You can't turn an existing swatch to a global / a spot colour swatch and you can't change ("edit") the spot property of a global swatch but its overprint property only. Thus to replace a CMYK by a Spot Colour you need to create a separate spot swatch first.

[Thomahawk]

Not only that you can not even change from cmyk to spotcolor or vice versa, the painful way through selecting same fill and apply a new swatch does not even work consistently through the whole document. There are always objects left out, despite them being set exactly the same way. Plus you have to do that for each obacity variant of that color individually.

This is a nightmare!