Hi,
it depends on the drawing order. If one line is totally overlapped by another and the smaller one was drawn last, it is not possible to select the smaller line.
Draw the smaller line first and then the longer one, then you can select the smaller one by clicking on the overlapping area and the longer one by clicking on the none overlapping parts.
Best solution for overlapping items is to place them on separate layers. Then you can set the layer with the overlapping item invisible to select the overlapped item.
Armin
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