NORMAL

The element is edited the normal way (default).

If acting on the element as a whole (NONE), this will MOVE the element by MOVING its toplevel. When acting on the start of the element ( START), this will only MOVE the element, but not its toplevel parent. This can allow you to move a Clip or Group to a new start time or layer within its container group, without effecting other members of the group. When acting on the end of the element ( END), this will END-TRIM the element, leaving its toplevel unchanged.