You can right-click a Parameters node and choose Parameter Case to add one or more Case () subnodes. The Case nodes’ Settings window contains a Parameters section with the same parameter names as the parameters in the Parameters node to which they belong. You can only change the Expression column to use a different parameter value in each parameter case. Parameter cases are useful for using different set of parameter values without having to load the parameter values from a set of files. When you have defined multiple parameter cases using Case nodes, you can select from which case to set the parameter values in the main Parameters node. You also use parameter cases for parameter switching using a Parametric Sweep node.