After you have configure your site , now you can write content and article.
For first you can visit on manage - categories - and create new categories for grouping your article, with this features so make easy for you site visitor to check post by categories.
And yeah... of course now you can create and write article content for your blog or post page with select new content, and insert title in here then write your article, don't forget for insert your description and tag for help you touch perfect SEO, you can open options on top article form, then select categories post article, upload your cover image, then switch on advance and insert your tag and others, save it for publish your content article.
For type post implementation :