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.
It rises on the east shoulder of Slieve Glah mountain three miles south of Cavan in County Cavan and flows 80 miles (129km) through Lough Gowna, Lough Oughter and Upper and Lower Lough Erne, County Fermanagh, to the sea at Ballyshannon, County Donegal.he River Erne (Irish: Abhainn na hÃirne hÃ©irne Or Ãirne), eirne Ã©irne in the Northwest, of ireland is-the second longest River. in ulster
The source of the river tends to be close to the watershed which occupies the highest ground around the basin. The journey of the river is then downhill to the sea. Example: River Tees: rises on Cross Fell,seen below, that rises to 890m. The sources of the Tees is 130m below the peak. The path the river follows from its source to mouth is known as the river's course. When studying rivers we often divide it into 3 main sections, the upper course; middle course and lower course.