Post Settings – from this page you can set different options related to pages, single blog post page, single gallery page and single video page. You can see available options in the image below.

You must take into account that some of these settings may be overwritten by the settings on your individual posts. For example you can disable similar posts or post meta only for a single Blog Post as shown below:

Hence the single post settings will have priority, even if  Similar Posts are ON in Post settings.