I'm attempting to preview all san-serif, heavy weight, regular width fonts. While the filter shortens the list of fonts in the preview window, when I use the arrow keys to see my live preview I am getting only light weight previews. If I want to see the heavy weight version, I have to pop open each font group and select the heavier weight version. What gives? This is such a basic idea... please show me ONLY bold, heavy, extra, etc. Don't show me light weight previews when I am filtering for heavy weight. This limitation makes live preview almost useless.