interface_build {
    {i.image.mosaic2} 0
    {Mosaic (patch) up to 4 adjacent images with automatic color table extension (output to *_mosaic)}
    {entry image1 {Input base image for mosaic:} 0 raster}
    {entry image2 {Input 2nd image for mosaic:} 0 raster}
    {entry image3 {Input 3rd image for mosaic:} 0 raster}
    {entry image4 {Input 4th image for mosaic:} 0 raster}
}