Filter or action when adding or modifying schedule

Hi,

(been using your plugin for a while now and it works great for me. Good job!)

I’m trying to add support for backupwordpress in a plugin i have (Simple History – http://ww.wp.xz.cn/plugins/simple-history/), so in my plugin it will log when a backup is created or when a schedule is created/modifier/deleted.

I have managed to log when backups are finished, but there does however not seem to fire anything when a schedule is modified? Any chance a filter/action could be added there?

Thanks!

https://ww.wp.xz.cn/plugins/backupwordpress/