Adding predicted downtime to maintenance events

Currently, it is not possible to add the predicted downtime of an aircraft for each maintenance event.

It would therefore be helpful to have an area available when creating the Maintenance Event where one can stipulate that task A is predicted to take X amount of days.

The X amount of days should also be able to automatically update the Unavailability Window End date when the Unavailability Window Start date is filled in.

Attached is a proposed layout.