Shared Parental Leave schedule

As much as I am aware that Shared Parental leaves are not that common, it would be still useful to have an option to be able to create a schedule for shared parental leave. While working for a payroll bureau we actually get a fair amount of them and having to input everything manually and keeping track of this in our personal records is just inconvienientt. If there is a maternity leave schedule there should be shared parental leave.