Step Line Without Risers
Step start and end position control
You can control exactly where within category/date each step starts and ends using series’ startLocation and endLocation.
More information about step series
Step series without risers
Step line series can display just horizontal lines, without vertical connectors. For that just set its noRisers property to false.
Series in a scrollbar
The scrollbar used for zooming of the chart can depict a “small version” of chart’s actual series. More than one series can be added to the scrollbar.
More information about XY chart scrollbar
Demo source