The pics with green and red selected objects show the new object selection rendering mode. User clicks left mouse button once in 3D view to select all walls of a cell and second click will select individual walls coloring them green. The right mouse button is used to deselect everything. The bumps are very easy to make. User creates a grayscale 8-bit tga image then draws the bumps into the texture. The editor will then convert the heightmaps to normalmaps. The door texture has bumps baked into it ie. doesn't use a heightmap and this results in washed out look.