chord_L0.opts(opts.Chord(labels='Name', height=400, width=400))

chord_L1 = hv.Chord((edges_L1, nodes_L1), ['Source', 'Destination'],['Value'])
chord_L1.opts(opts.Chord(labels='Name', height=600, width=600))

chord_L2 = hv.Chord((edges_L2, nodes_L2), ['Source', 'Destination'],['Value'])
chord_L2.opts(opts.Chord(labels='Name', height=800, width=800))

chords = chord_L0 * chord_L1 * chord_L2
chords