When I tried to do an analysis on a wood part, the Solidworks library did not contain enough wood data to do the simulation. The message I received was: "The material in the default library can not be edited. You must first copy the material to a custom library to edit it." Apparently there is some custom library within SW that I can enter and install the wood properties of the wood I am interested in. Once installed, I should be able to run my problem. I have no idea how to access this so called "custom" library. Can anyone help me access this custom library and use it?