Do you use uDesign WordPress theme and want to know how you can use a single portfolio item without creating a duplicate copy of it in blog section? Selecting of the blog category won't work if the uDesign configuration is set to hide portfolio items from blog page. In this case, the solution is mark the portfolio item as Sticky. Don't know how to do that? Go to the list of portfolio items in the posts and quick edit. You'd find option to choose the post as sticky.