The following options are available for the segmentation keystroke (Enter):
two keystrokes per annotation; the first keystroke marks the begin, the second the end of the annotation
one keystroke per annotation; the end time of one annotation is the begin time of the next. This creates a chain of adjacent annotations
one keystroke per annotation, each annotation has a user definable, fixed duration. The keystroke marks either the begin or the end of the annotation
An additional option, the delayed mode, allows for compensating for the time lag between the observation of an event and pressing the key. The value (in milliseconds) is subtracted from the time value of the keystroke.