how we can update the schedule description or distribution description to be different from the line

we have a PO with one line and we will split this line into multiple schedule lines and distribution lines. and we require to update in the schedule or distribution description to explain the meaning of the schedule or distribution line

example:

PO line description is: security guard agreement

The schedule line "1" description is: security guard fees for Jan 2024

The schedule line "2" description is: security guard fees for FEB 2024

The schedule line "3" description is: security guard fees for March 2024 ..... ETC

The distribution line "1" description is: security guard fees for Jan 2024

The distribution line "2" description is: security guard fees for FEB 2024