I’m a little confused on what you’re asking exactly, but I’ll try and explain what this portfolio is and what it can do.
This particular portfolio is designed to be as simple as possible, think of it as just a blog that is redesigned to show in a portfolio thumbnail format. I didn’t want to make it too complex by adding too many features/code since heavy duty portfolios be done with plugins rather than themes.
With this particular portfolio you can either have all categories on one page, or you can have select categories show by excluding the category id’s you don’t want to appear in the Genesis Theme Settings, or you can have multiple portfolio items that show each category separately on each page. Here are a couple tutorials on how to create multiple portfolios – http://appfinite.com/tutorials/
Some users ask if its possible to have each portfolio item/post/thumbnail link to different categories that open up to show a portfolio of that specific category, and at this time its not unable to do this just yet. However, as mentioned above, you can have multiple portfolio pages that show each category separately.
Again, this is pretty simple, so if you need something a little more complex, then I would recommend searching the WordPress plugin area.