Yes. When you move the sliders the visible range will change to the centre portion. You can then split the segment, which will turn a single segment into either 2 or 3 segments, depending on whether both the front and back sliders were moved. All two/three segments will then become visible, and you can just select a segment and delete it if you don't want it -e.g. in your example you would select the centre segment and delete it.