To answer your question is quite simple in XPro you work in RGB colour and then when you export as a PDF the colours which were in RGB get converted to CMYK. What does this mean to you? well some colours like maroons, purples and dark greens come out different and washed out. To over come this you have in your Windows menu, Simulate Printers Colour which gives an approx. of what it will look like exported. What everyone is asking here is for the same as many other programmes allow to select the colour profile you are working in RGB or CMYK and what you see in the screen is what you get from a wet copy when it gets printed. As I said before what we have at the moment is only an approx. of what it is going to look like. If you develop your own standard palette you can quite easily predict how your wet print is going to look but this comes with experience and this thread people are asking to take the guess work out of sending you work to the printer. After you export your work if you have an PDF reader in your system you will see your output.