How do I update plugins? Using the NELO theme with the latest version of Wordpress.

Why isn't there a simple update link to automatically update the plugins like almost all other plugins have? I don't have a multisite. I have one site that needs the plugins updated and it appears that I have to download the .zip file, then delete the old version of the plugin, then I need install the new one and reconfigure it.

Am I missing something? There has to be an easier way.