Go to the week from where you would like to delete the shifts.
Click on the publish-menu on the top right.
Click on Selected schedules or Changes by others.
Tick the box of the week you'd like delete unpublished shifts from.
In case you'd like delete in further in advance, you can also select 'After'.
On the bottom right you can find 'undo', you may click on this now.
All unpublished shifts are deleted now!
In case the shifts are published, please contact us: firstname.lastname@example.org.