I'm a beginner Revit user and am using Revit LT 2017. I'm doing a quick study model of a house and want to apply a few materials to the exterior to give a general idea of what they look like. Don't need photo-realistic. When I use the Paint command I have a fairly limited palette of materials to choose from out-of-the-box. How do I add new materials relatively quickly? I'm specifically looking for stone veneer and natural wood siding options. Can I find them pre-made somewhere online and import them, or do I have to create my own from scratch? Thanks very much!