The Core version of Grav is accompanied by more than 45 plugin each of which provides viable new options for the CMS. The Softaculous installation comes with 6 of those plugin and you can install more at any time from the application itself.
To install a new plugin, access your admin dashboard and navigate to the Plugins section.
Here you will see the currently installed plugin and will be able to add a new one by clicking on the Add button.
Select from a multitude of different plugin and click on the Install button when you have made your choice.
Just a second later you will see the following message indicating the successful installation of your plugin.
Congratulations. You now have a new plugin which you can configure from the plugin section.