SEO – AREAS TO CONTROL/CHANGE THE CONTENT SEARCH ENGINES SHOW.

Functionality to create better SEO for the website. Especially for the homepage. There are third party plugins which work well for adding/changing these items for individual pages but the way in which your theme is constructed you are unable to control the content people see when the main/home url for the site appears on search engines. This would be greatly appreciated as many people would use it.