The list actually shows all visitors who have been actively visiting your house. The restriction due to the intranet is that you only see visitors who are created for you or created by you for colleagues.
The screen always starts in "Currently on site" mode, which you select via the button Currently on site and notice the currently active visits in the house.
Button: Currently on site - a filter that only shows active visitors.
Button: Print - The print button provides you with the current listing in tabular form for printing.