Hi Matt,

Thank you for your interest in our product. For your questions:

1. The paid version is added more than 20 add-ons to open-source version.
2. The directory structure is not important, as long as you require the "/koolreport/core/autoload.php" to your php file. To connect to SQL Server, you do:

class MyReport extends \koolreport\KoolReport
{
    protected function settings()
    {
        return [
            "dataSources"=>[
                "mysqlserver"=>[
                    "connectionString"=>"sqlsrv:Server=YouAddress;Database=YourDatabase",
                    "username"=>"Username",
                    "password"=>"Password"
                ]
            ]
        ];
    }
}

Hope that helps.

Let me know if you need further assistance.