I would like to have only 9-12 pictures per page in the gallery as shown in smugmug's homepage. I am getting 28 per page (smugmug style) which looks crowded and the dominant picture is not large enough. Does anyone know how to adjust it? Thank you.
SmugMug automatically fills up the browser window with a big main image and thumbnails. If you block larger sizes, and have a large monitor, you can end up with a lot of thumbnails.
One thing you can do is turn off "stretchy" and that will force SmugMug Style to be 15 thumbnails and a large main image. Stretchy is turned off in your advanced customization page (control panel>customize tab).