The plugin does not work without Ghost Commander application itself! Install the main app at first then download and install this plugin.
To use the plugin launch Ghost Commander then navigate to 'Menu > Location > Home > Google Drive'.
Select a Google account then wait for authorization.
Please don't panic if the authorization does not start right away please stay calm and try again.
Once authorized the application will NOT ask for the authorization on the next and subsequent runs. The drive files will be accessible without ANY security precautions. If you lend your phone or it was stolen your Drive files WILL be compromised.
But you can visit this page where you can revoke the authorization: