Use this tab to specify the start and end chainages for a superimposed profile.
Specify the chainage range either by numeric entry or by clicking a chainage along the parent horizontal alignment.
Note: If you want the superimposed profile’s chainage range to remain fixed, then select the Select Start and Select End check boxes. Selecting these options prevents the superimposed profile from reacting to changes in the chainage range of the source alignment. If the Select Start and Select End boxes are not selected, then the start and end of the superimposed profile is locked to the start and end of the source alignment. If the start or end of the source alignment is then changed, the superimposed profile updates dynamically.