To set a mark on your item :
•Place the playhead where you want to insert the locator.
•Click on « Set a locator » 
. Your locator appears on the track, and it comes with a number.
•When your locator is positioned on the track, you can rename it by right-clicking on its number to see the popup menu. From that point, you can choose between two options : "Rename Locator" / "Delete Locator".
•Once you have renamed your locator, a label will appear inside the clip.
