Installing via FTP
To upload Sugar Calendar through FTP, first connect to your website using your favorite FTP program. If you are not familiar with FTP programs, I recommend Filezilla.
If you do not have the FTP connection info for your website, it can be obtained from your hosting company's control panel for your website.
Before connecting to your site's FTP, download the .zip file for Restrict Content Pro from your purchase receipt and extract its contents. This will leave you with a folder called sugar-calendar.
Once you are connected to your site via FTP, navigate to the wp-content/plugins/ directory and upload the sugar-calendar folder. The final folder path will be wp-content/plugins/sugar-calendar.
Once the folder is uploaded, log into your WordPress site, navigate to Plugins, locate Sugar Event Calendar and click Activate Plugin.
You will now have a menu item label Events near the middle of the admin menu in WordPress.