In a group template, the Point at start of line builder generates a point feature at a specified offset at the first vertex of a polyline feature you create in a map. The builder is available with point component templates when the primary feature geometry is a polyline.
To view a complete list of feature builders, see Feature builder reference.
Position along the line
The distance from the last vertex of the primary polyline at which the new point feature is created.
Offset to the side of the line
The distance from the left or right side of the primary polyline at which the new point feature is created.