I'm trying to understand what you are looking for as with Managed WordPress - when you install the GoDaddy SSL Certificate it automatically configures the wp-config file to redirect traffic to HTTPS
Also just to confirm you can ONLY use a GoDaddy SSL certificate - you are not able to install 3rd party certificates on Managed WordPress.
In regards to FileZilla - Make sure you are in the root of your site - sometimes the SFTP doesn't redirect you to the correct folder which should be /home/YOURSFTPUSER/html
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