High-Low lines on Clustered and Stacked column chart combined

Hard to tell exactly how you have created you chart from a picture but if you want control over the hi low lines you could use custom error bars on a dummy xy-scatter series.

Using xy-scatter will give you the ability to position along the horizontal axis, which is likely to be off center of each category cluster of columns.
The custom values for the error bars allow you to control the length of each line.