Yoast SEO Premium redirects module
The redirects module allows you to create and manage redirects from within your WordPress install, allowing you to easily redirect old URLs to new ones, and solve common issues. This is especially powerful because of the combination with the Google Webmaster Tools integration. Built for scale, this redirect module can either handle the redirects for you or generate a redirect file that you can include in your Apache or NGINX server config.
Yoast SEO Premium: multiple focus keywords
In our new Yoast SEO Premium 3.0 update, you’ll be able to optimize a post for two completely different terms, or for two synonyms. This means you no longer have to choose between terms you’d like to rank for!