Adding new texture

How do we add new textures to the paint bucket (b) tool on the web app? I have a template that has a few wood grains already in the document, but occasionally the students will lose a few of the wood grains and we cannot find a way to add a new texture.

Thanks

There isn’t a way to add new materials to the existing materials collections. They can be added to a model by importing an image file set to use as a texture. If you have a place the students can access (3D Warehouse or similar) where you can keep a component with the textures, they can import that component and bring in the textures with it. Then they can use the textures on their models.