To open the Triggers panel, click the Triggers button () or select Tools > Triggers in the scope menu. When the Triggers panel is displayed, triangle pointers appear at the top and right side of the axes on each display. These markers indicate the time position () and level () at the event.
The Erne. The River Erne is located in the north-west of Ireland, rising in Beaghy Lough in County Cavan and flowing in a general north-westerly direction. It is approximately 120 kilometres in length and winds its way through a number of loughs including Upper and Lower Lough Erne.he Bann is the longest river in Northern Ireland, stretching a total of 129 kilometres from the Mourne Mountains in County Down to the northern coast of Ireland, entering the Atlantic Ocean at Portstewart.
At 1320 kilometers the Rhine is the longest river in Europe. It rises in the Swiss Alps issuing from the Rheinwaldhorn Glacier 3,353 m above sea level. It flows generally north, passing through or bordering on Switzerland, Liechtenstein, Austria, Germany, France, and the Netherlands before emptying into the North Sea at Rotterdam. Its important tributaries are the Aare, Neckar, Main, Moselle, and Ruhr rivers. Canals link the river with the Maas, RhÃ´ne-SaÃ´ne, Marne, and Danube (via the Main) valleys. The Rhine is connected to the Mediterranean Sea by the Rhine-Rhone canal and is joined to the Black Sea by the Rhine-Danube canals.