Preview in Grayscale, CMYK, and More

QuarkXPress 7 has an amazing ability to render your layout in whatever color space you like.

Preview in Grayscale, CMYK, and More
The Grayscale option (View> Proof Output> Grayscale) is particularly handy for previewing how your entire layout will print in grayscale.

Preview in Grayscale, CMYK, and More
The other built-in profiles include RGB, CMYK, CMYK and Spot, and more.

Preview in Grayscale, CMYK, and More

You can create your own, or import profiles provided by your output provider, by choosing Edit> Color Setups… Output…