It's now easier to make changes ( such as different times, titles, info ) to established repeating shifts.
On the date that you want to make the change, simply choose Edit and then Edit the Series forwards from this Shift.
This new functionality is now available on the Rotaville desktop web site and mobile site, and will soon be available in the mobile App.
Edits and updates to a repeating shift from a future date are actually made by splitting the repeating shift in two.
The original repeating shift is set to end the day before your change, and then a new repeating shift is started containing the updated information.