Time in lieu can be added by supervisor to employee current year allowance usually to recognise additional working. It will be added to the employee yearly allowance and calculated in days. To do this supervisor has to go to the employee section and chose employee for whom adjustment is required.
Employee page with list of employee and name selected
In employee details please select section absences.
Employee details page with tabs and Absences tab selected
There please go to the Allowance adjustment in current year and add required number of days and press Save changes. Once this time is edited to employee allowance it can be used to book leave requests.
Allowance adjustment in current year field screenshot