How can I update the plugin?

You can use envato toolkit WordPress plugin to update the plugin Or just replace the files to the plugin folder via ftp. That’s it. You have just updated the plugin to the latest version.

Your customized settings won’t affect due to plugin update.

However, it is advised before updating the plugin, backup your customization settings from Import-export settings page. And backup database and all your WordPress files so you can revert back in case of any error.
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