Keyboard Shortcuts simply turn multiple mouse clicks into a simple press of a key. This might not seem like a lot, but if you are an avid user of keyboard shortcuts you have likely noticed just how helpful they can be. Using keyboard shortcuts for common actions such as LIKE, SHARE, NEW POST, NEXT POST, PREVIOUS POST, and others is a great way to enhance your members experience.
Sitemap is a tool that inform search engines about the structure of your site. By placing a sitemap on your website, you enable Search Engine crawlers (like Google) to find out what pages are present and which have recently changed, and to crawl your site accordingly. You don't have to manually submit sitemap as it automatically (if settings is enabled in the admincp) Notify Popular Search Engines (Google, Bing) when sitemap changes.