Potfolio items are mainly designed for showcasing your work, and posts have their own blog templates.
blog posts example: http://themes.creiden.com/circleflip/blog-page/
setting posts templates:
setting your page: http://docs.creiden.com/circleflip/theme-options-2/pages-settings/template-blog-page/
selecting layouts: http://docs.creiden.com/circleflip/blog-2/blog-layouts/
single post formats: http://docs.creiden.com/circleflip/post-formats/
blog page settings: http://docs.creiden.com/circleflip/theme-options-2/pages-settings/blog-page/
nonetheless have added “portfolio pagination” to our list of future updates, and will update you when it becomes available.