Portfolio Post Options
As part of the Fusion Page Options, on Portfolio Posts, you will find a Portfolio tab. On that tab, are all the individual portfolio and post settings that can be set for each Portfolio Post.
These are local options, which can be configured on a post by post basis to override the global theme options, or left as is to accept the global defaults. As an example, this post on the Agency demo has virtually every global portfolio option turned off or hidden, so on the single post, it displays as a regular page, whereas all but the first three portfolio items on the Agency demo are using global defaults, and showing Categories, Skills, Tags, etc..