For scaling, Poser Import has setting to adjust it. But, you can't use the OBJ that is the source of the import as morph stock if you do. If you use the dial of the library file to do it - you are usually scaling to 1-2% of the original scale, the PP2 'remembers' the original size, so you are trying then to do fine scaling in a scene after you have already burned 98-99% of the sensitivity. Better = Import and scale to the Poser size - either with the Import options or the dial and then Export as this new size. Now, Import this with no options checked and you have the full range of the dial scale.