I am trying to use the LTI plugin for WP with Canvas. I've followed the instructions at: https://lti-examples.heroku.com/index.html?tool=wordpress. I was able to modify my site for multi-user and I'm able to see my Network Admin dashboard. However, after I extract the WordPress LTI plugin to wp-content/mu-plugin, and then log out and back in as a super user, I still don't see the 'LTI Consumer Keys' option in the Network Dashboard > Settings menu. I suspected that 'mu-plugin' should be 'mu-plugins' so I made that edit in my directory, but that didn't work. I also tried extracting the LTI plugin folder to the normal wp-content/plugins/ directory, but that didn't work, either.
Does anyone know how to get this LTI for WordPress plugin working so that it'll show up in my Network Dashboard > Settings menu?
(BTW, I did check and I do have superadmin privileges)