You can add Material Library Link nodes () from the Add Materials and Material Browser windows or by choosing Add Material from Library in a Material Link node. A Material Library Link provides a link to a material from a material library, which can easily be updated when material properties change in the material library file. It works just like any other global or local material when added to the model. For most settings, see The Settings Window for Material. When the link is active, you cannot change any of the values in the Material Contents section. You can also not add any user-defined property groups.

Click the Reload button to reload the material properties for the linked material from its material library, if the material properties have changed in the library material. If you have broken the link, you will get a question about if you want to override all changes.

Click the Replace Material button to open a Replace Material in Link window, where you can choose another material from the available material libraries. Click the Replace Material in Link button to replace the material in the Material Library Link node and close the Replace Material in Link window.

Click the Break Link button to break the link to the material library. It can be necessary if the library material does not include all material properties needed for a simulation. The Material Library Link node then behaves like a Material node, and you change the values of material properties in the Material Contents section and add user-defined property groups.