How do I access the existing material library in Assembly design ?

I followed the 3DX tutorial in the link below to add balsa wood to my existing component. However there's nothing in the material library. Do I have to define each and every material or can I somehow access the same list from the tutorial ?

Edu 3DEXPEREINCE ​​​​​​​Assembly Design ​​​​​​​

Thank you


Assign a Material in 3DEXPERIENCE - YouTube