PsiModel(option name, value, model name)

PsiModel sets any Model option, or any option that appears on the Task Pane Model tab.  Pass the name of the option as the first argument, Option Name.  Pass the value of the option for Value.  You may pass a model or sheet name, in quotes, for the last argument, model name, to indicate to ASP what model or worksheet the option setting belongs.  Note:  Only model options pertaining to optimization can be set using PsiModel().