This tool is used to make “EventMark” over the track to set automatization. There is an example of the process in the figure shown below. When the aircraft passes by the point created, an event is triggered and it can be used to start a set of actions (start an automation).
“Event Marker” Example
In order to link an automation with an “Event Mark”, right-clicking on the event will show all the automations of the type Route, so each waypoint can be related to the desired automation. Besides, the window of the Event Marks has an option to change the location of this point, by modifying the distance from the previous waypoint of the route to the Mark. The type “Referred to start” indicates that the distance goes from the begging of that patch, to the mark.