The more I try to comment the more I realize the entire thing needs an overhaul. Essentially, I want integer/slider controls for several maps or materials at once. This would require a much more detailed node-based editor.
For instance, if I want to control the size of a material on an object I need to modify the size of several bitmaps at the same time, or modify scale via the mapping of an object. There are several instances when this would be better to do in the slate editor. For instance, if I'm dealing with several AOE maps, I might want to control their scale or reflectivity at the same time, while ignoring the rest of the maps.
It's also better if textures stay real world scale- as such, if I can provide the exact scale of the texture without having to resize the mapping, this makes this texture a lot more useful on multiple surfaces. It's much easier to do this if I can manipulate several textures in the material editor. Finally, if the mapping is clean, its just easier to deal with scale in the material editor than outside of it.
