In order to do this, you can add multiple Layered Material nodes under a Switch node. You add the Switch node from Materials under Global Definitions. The Switch node can be selected in the Layered Material Link node. However, all Layered Material nodes under a Switch node must have same number of layers, even though they can have different total thickness. To handle a case with several materials having different number of layers, you can split the layers in one or more Layered Material by adjusting layer thicknesses while keeping total thickness constant, so that total number of layers in all Layered Materials are the same.

With these settings, it is possible to add a Material Sweep node to any study in order to solve for all layered materials.