Why in UNITY3D 4.6.3 is it possible to set events in the animator earlier than the first frame?

Question

Unity

If the event happens to be earlier than the first frame, then it doesn't fire when the animation starts, however, this placement is possible - what can it be used for??

Answer 1

The event can be placed before the first frame if you right-click on the eventline before the first frame. When adding an event through the add event button (+), it is placed in the first (or current) frame.
I hope someone will help.