You can highlight a section of a track or shape by first clicking on it to select it, and then dragging with the Select Tool across points, or dragging down the length of the selected track. The Home and End keys move the marker to the start and end of the track, respectively. This is really useful if you want to use the Insert Trackpoint command (press the I key, or right-click and select Insert Trackpoint) to insert a new trackpoint between two existing ones. The Up Arrow moves the marker halfway to the prior point, and the Down Arrow moves the marker halfway to the next point. In both cases, the marker will now be exactly on top of a trackpoint. The Right Arrow moves the marker one point closer to the end of the track. Left Arrow moves the marker one trackpoint closer to the beginning of the track. You can use the Arrow Keys to move the marker from one trackpoint to the next. As you move the marker on the map, its position will update in the List and on the Profile. The track marker also appears as an orange triangle in the track's Elevation Profile, and in the Trackpoint List. If you select a track by dragging across it with the Select tool, the Marker is not set, and you'll have to click on the selected track to set it. You can right-click and Reverse Track if needed. It appears as an orange triangle, pointing in the direction of travel along the track. The track marker is automatically placed on the track at the point where you clicked to select the track with the Select or Move Map tool. These techniques can be applied to routes and shapes, as well. In the instructions below, I'll refer to Track Marker and Marker interchangably, and Track Selection and Selection interchangably, and talk about working with tracks. The Track Selection allows you to highlight a section of a track or shape in magenta, and apply commands to just the highlighted section of the selected track. You can use the Marker to step through the points in a track one at a time, see your exact speed at any point on the track, compare your position on the map to your elevation on an elevation profile, and to mark the location where you'd like to modify the track (break, split, insert trackpoint, place label.). The Marker, as its name suggests, is an orange triangle that marks your place along a track. The Track Marker and Track Selection are important concepts when working with Tracks, Routes, and Shapes in ExpertGPS. Using the Track Marker and Track Selection
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