Travelling within EU does not require using a passport by EU citizens - passengers can use national ID cards instead.
It is now possible to add ID card's details to PAX profile and use it on the trip. Leon will show ID card's details on documents, such as: Crew Trip Sheet or PAX Trip Sheet as long as it's set up in Documents Manager panel, by using data items: 'arrivalNationalId' & 'departureNationalId'.
When adding a new passenger's profile (or when editing the profile of already added passenger), click on the button and insert ID card's details.
In the OPS panel (tab PAX) Leon shows expiry date of the ID card.