Create an instance of the NN19 digital sampler and load it up with the sample you want. If you're sample is small enough, that will work. If you have a lot of samples I'd recommend using either the redrum or you can learn how to use the zones in the advanced sampler. If your sample are really long, I'd recommend using a free app like audacity to chop it up a few times and use it as several different samples to save yourself some trouble.