When creating materials, I find it very valuable to compare the various maps to make sure they are consistent. For example, does the dirt in the albedo line up exactly with the pits in the normalmap?
I can click on the output maps and view them in the 2D View, but this is a bit akward (lots of clicking) and I cannot compare it with the exact same place in the shaded 3D View.
It would be super useful if there was a shortcut key makes the 3D View cycle through the flat and unlit maps. Then I could zoom in the right place in the 3D view, and press a button to cycle through the maps like this:
