The page is available only when the GitHub plugin is enabled. The plugin is bundled with PhpStorm and activated by default. If the plugin is disabled, enable it on the Installed tab of the Settings | Plugins page, as described in Managing plugins.
Use this page to specify your GitHub remote storage account, or create a GitHub account if you do not have one yet.
You can specify several accounts and set the default account for each of your projects. Thus, you won't have to specify which account to use each time you need to connect to GitHub, for example, to create a gist.
Click this link to specify an existing GitHub account, or create a new one.
Clone git repositories using ssh
Select this option if you want to transfer data from GitHub via the secure SSH network protocol.
Specify the time period to wait for connection to be established.