Below the text editor and on the right sidebar are a number of features and advanced options for your posts. Here you assign things like categories, tags, allow or disallow comments, etc.. We highlight the main ones you would be using by adding a screenshot image of that feature.
Categories – attach your post to a Category.
You can add new Categories here on the fly using the Add New Category link at the bottom of that box. Categories can be also managed from the Categories link under the Post tab. If you neglect to assign the post to a category your it will be assigned to your default category.
Comments and Pings
You may open a post to accept user comments or keep it closed to comments by selecting and un-selecting the check boxes. You can also set the comment defaults in the Options/Discussion Tab. The ping feature will display links to other blogs that had linked to your post. If pings are selected then links to their posts where they had referenced you will automatically appear in your list of comments once their site has pinged yours.