the documentation and your explanations indicate that if we create a Portfolio item it will automatically display on the website if we create three types of pages that adhere to Showcase, Carousel and Portfolio Grid template formats.

The problem is I want to create three type of Portfolio items, the first type will ONLY show up on Showcase page/template, the second set of Portfolio items will ONLY show on the Carousel page/template and do NOT show up on Showcase nor on Portfolio, and finally a third of set of Portfolio Items that ONLY SHOW UP on the Portfolio Page/template, they DO NOT show up on Showcase or Carousel,  so how can the webmaster do this???

Thank you.

I believe you understood my question correctly and I have thought about this approach, however if I create specific categories just to triage three sets of Portfolio Items along three distinct template assigned pages to Showcase, Carousel and Portfolio Grid, what happens is I will have these extra categories show up on the blog side panel.

or are the categories for the blog separate from the categories created for the Portfolio items?  will they be two separate category sets?