Github user tessbianchi commented on the issue:
https://github.com/apache/zeppelin/pull/2677
Alright added support for the command key. However, I do not have a mac and
couldn't test it.
I implemented the second answer on
[https://stackoverflow.com/questions/3902635/how-does-one-capture-a-macs-command-key-via-javascript](this)
stackoverflow. ---
