Custom textures in the paint tool/drawer

I want to be able to use my own custom textures (JPG/PNG) directly in the Arkio paint tool/drawer. This is critical for my business, which focuses on facade renovation presentations, as I need to show specific facade materials to clients. Currently, I can only use the built-in materials or import textures via other software like Revit/SketchUp, which is not as efficient for quick presentations in Arkio.