Once you have assigned a shift (either automatically or manually), you can drag and drop shifts to move staff to another shift or duty.

To move a shift, click and hold the mouse button and then drag the shift to the new spot. When you release the mouse button, CoRoster will update the roster for you 

If the shift is locked, you will see a message confirming you wanted you move the shift. Locked shifts that are moved will keep the lock after moving.

Staff with a part time shift will keep their hours when moved but their start time will change to the default start time for the new duty.