Hi Maria,
You can update that Cyclic_Job_Shared table with the user input, you only need to be careful with the syntax.
In the Schedule attribute you can specify the same schedule as in Service Studio (or Service Center).
These are the values accepted:
● Hour and Minute (e.g. "16:15").
● Hour and Minute followed by a List of Days of the Week ("e.g. 22:00 Mon Fri").
● Hour and Minute followed by the Month's Day Number (e.g. "15:30 16").
● Hour and Minute followed by the Month's Week and Day of the Week (e.g. "00:15 2nd Tue").
● When Published (e.g. “When Published”).
And you probably only want to give this functionality to users with a specific role, so I would add this feature to a screen only accessible by users with some admin role.
And if you want to be extra careful, also check the role, before updating the record.
Let me know if this helps,
Pedro