Lead Feature is an Event? How can it be? (Open Atrium)

Hi,

Maybe I set this feature up wrong but when I go to create a business lead it requires it to be set as an event type i.e. meeting, milestone, deliverable... Sorry but I cannot see the relationship?

Does this mean that a lead appears on the calendar?

If I try to change the event type to something that relates more to the TYPE of lead, that would be very useful. BUT will that alter the list for a standard event as well?

thanks in advance