There are numerous ways to select multiple paths in Photoshop:
• Shift -click with the Path Selection tool to select multiple paths on the same layer. Shift -click a selected path to remove it from the selection.
• Click-drag in the image area with the Path Selection tool to select multiple paths or, click-drag with the Direct Selection tool to select multiple line segments/anchor points.
• With either Path Selection tool selected, use the Select option in the options bar to select paths on the Active Layer or All Layers.