If there are airports to/from which you fly several times a day and at those airports you use the same handling agent, you can send them a file with all scheduled flights to/from that airport, on a particular day. It is a simple tool, which can be used in situations where you can send a file along with the description as to what handling services are needed for all those flights.
Once flights have been added to Leon, go to section OPS > Home Base Handling Request and in the filter select the date, one or two airports of service and aircraft type/registration.
On the screen you will see all added flights to/from the selected airport with details such as:
All this data can be viewed in PDF file and eventually sent out to the handling agent (see screenshot on the right),