If you add passengers information to Leon manually (which means you don't use Pax Database data added to Leon in the section 'Phonebook > Pax Database') it is still possible to view it on 'Pax Manifest document.
If you hover the mouse over the '?' the information will show up: 'Show pax list in the text mode on Pax Manifest document. Correct data has to be entered in the format: No. gender surname name date-of-birth passport no. passport expiry date nationality. Columns have to be separatedd by comma.'
The below example explains how it works.
The gender will be displayed as: