Github user mebelousov commented on the issue:
https://github.com/apache/zeppelin/pull/2821
It's sufficient to have only `zeppelin.notebook.cron.folders`.
If this parameter is set to `*` - scheduling can be in all folders. If
`System/*, Testing/*` - only in those folders.
Thus if one will copy notes from production to another Zeppelin server and
will change `zeppelin.notebook.cron.folders` to specific folder, he could test
and use this server without removing of cron in notes.---
