This table stores materials in a way similar to the 'optical constant database'. You can drag&drop materials from the list of materials here. In the opposite direction, you can insert a material from the table into the list of materials.
The column structure is the following:
The user interface for this table looks like this:
As discussed for the configuration table 'code' you can filter out materials searching for keywords. In addition, there are a number of pre-defined keywords collected in a list of categories - this allows quick search for semiconductors, oxides, and other groups of materials.
Once you have selected a material and you want to use it in your computations just click on Take this and it will be inserted into the list of materials.