Thanks for the files. I had a quick look at the topic. There seems to be a “Virtual Texture 2D Object reference”. I would have to take a closer look. Basically, just like with normal textures, you just create a material and insert them there or not? I don’t know when I’ll have time to test that.
Your example textures are also only a few kilobytes in size. I don’t see a problem there. Rather with the way they are assigned to the meshes.