Not Found(error 404) page
When WordPress does not find a page, you can use any other page to be the not found page. By default the standard theme page is shown.
Disable “wptexturize” function for page title
This function applies transformations of quotes to smart quotes, apostrophes, dashes, ellipses, the trademark symbol, and the multiplication symbol. You can read information about this function here
Change from address
You can define any email address, Address will be used for all sent emails. Default email is wordpress@YOURSITE.com
Change from name
You can define any name, Name will be used for all sent emails. Default name is “WordPress”.
Show generation time
Only admins can see this information.
Number of SQL requests, generation time and memory consumption will be shown for all pages.