When creating a WordPress page or post, Plugins can add useful functions to the website. Plugins can be activated for the WordPress site from the Plugin menu. To activate the plugin, click on Plugins from the left sidebar on the Dashboard page. The list of available plugins will appear. Select one by clicking on the empty box beside your choice. Scroll to the bottom of the page and click Apply.
Some of the Plugins of interest:
HP5: Allows you to upload, create, share and use rich interactive content on your WordPress site.