You can create custom fields in your timesheet reports for the manager or admin. to enter information applicable to each shift. Here's how...
1. Go to Timesheets and click Custom Columns.
2. Create name of custom field by clicking the edit pencil. Then you can check the box to display the custom field(s) in html report and or Employee CSV export file.
3. Double click on a shift to get to timesheet details form. Here you can enter text for custom fileds.