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.
The River Shannon (Irish: Abha na Sionainne / an tSionainn / an tSionna) is the longest river in Ireland at 360.5 km (224 miles).The River Shannon drains the Shannon River Basin which has an area of 16,865 km 2 (6,512 ml 2), one fifth of the area of Ireland.imerick is the end point of the river, where it flows into the Shannon Estuary. Though the Shannon has always been important for navigation in Ireland, there is a fall of only 18 m (60 ft) in the first 250 Km (140 miles).