Hello, I’m relatively new to the software and I’m seeking guidance on adding a new material. The current library doesn’t include the specific material I require. Do you have any suggestions or know of any instructional videos that can help me with this?
I thank you lads in advance! 
Hello Jimmy,
Unfortunately I have only Dutch tutorials about the matter.
However in the help there is a little info about it.
When assigning a material to a shape, you always have the default material list.
Those materials and other things are stored inside a ZW3D file and referred to in the settings as bundle file.
You can simply add or delete materials from an existing file or create your own new one.
Adding is done by opening the attributes of a part like this:
In the field “Default you can open the list of existing materials and pick one.
Or you just overwrite the current name in the top field and typ your own:
Change the required parameters and hit the save icon.
Bare in mind, the modification will only be available in the currently opened file.
For modifying the default library yo go to : File” > Save all
Good luck
Luurt
This is just awesome!
Thank you so much for your good explanation. Really appreciated! 
As early as the 2024 version of the official development of a new material library, and now 2025 has landed!