Some optional functions may not be available, depending on your type of license.
The event widget enables setting events while recording sensor data. When pressing one of the action buttons in Record, a visual marker will later appear in your measurement in the Line Graph widget in Analyze.
Events may be used to define the kind of motion which is performed, e.g. in case your subject executes different motions (walking, jumping, etc.) in a row. This way you can easily retrieve the motions' corresponding sequence in the data afterwards.
Event widget in Record:
Line Graph widget in Analyze, showing three events: