No, Maternity leave can only be entered by HR. As for the compassionate leave applied, we can cancelling on your behalf.
Kindly confirm if you have updated workday on your 1st child birth.
Attaching a guide on how you can do so, you can also use the same guide when updating workday on your 2nd child birth, as you will need to enter your dependent details in workday within 30 days from child birth, so that he/she will be covered.