To add Time Marks to the Timeline:

1. Right-click on the Time-track at the point at which you want to place a Time Mark and select Add Time Mark.

   A small blue clock face symbol is added to the Time-track.

2. Repeat step 1 to add further Time Marks.
3. To skip forwards or backwards between Time Marks, first press Stop and then click or respectively. These buttons are only available when there are Time Marks ahead of and/or behind the current position of your Time-pointer.