Workcenter_Length of breaks

Hellow :)

I want to know how to input break time.

if we have several break times

- 10:00:00 AM~10:20:00 AM_20 minutes

- 12:00:00 PM~12:50:00 PM_50 minutes

This time i can input total break time like 03:20:00.

What should i do?

Thank you :)

Have a nice day ~ !