Hi Cybrid,
Thanks for your recommendations. However I've just tried the sktools which doesn't give functions of exporting notification queue records. Though there's a "save list" function, it doesn't save all parameters existed from all notification records. There's also no import notification exported saved list option. So sktools is not the selection. For sprite backup, it backup or restore everything about system, but it doesn't offer backup of notification queue only.
This seems that all scheduling events via notification queue can't be flexibly controlled in an advanced manner.
