When multiple variables are defined, and no variograms or only direct variograms are defined (no cross variograms), then multiple prediction (simulation) is the default action. See for instance example 10. In the multiple mode, predictions or simulations are made for each variable independently. The advantage of using the multiple mode over using a command files for each variable, is that, besides being concise, if the variables have identical locations, each neighbourhood search is done only for the first variable (example 16).