How to use different material for raster by overlay name

now , i add many raster component to terrain actor ,such as ,wmts,tms,wms. different component ,i want to change it material properties,and apply in component, but only one of them.
so how to do that,

There are several ways to do that. You can get the 3DTileset object reference, and use the node"get component(s) by class", "component class " is set to the one you want. You can also use the node “get components by tag” , only if you already set the component tag to them in outliner.