README file: Supplementary electronic material for the paper G.Carta, D.J.Colquitt, A.B.Movchan, N.V.Movchan, I.S.Jones, 2020, Chiral flexural waves in structured plates: Directional localisation and control, Journal of the Mechanics and Physics of Solids, 137 (2020), 103866 (16 pages) This supplementary material is mentioned in Sections 2.2 and 3.2 of the paper. It includes 5 auxiliary videos, which illustrate eigenmodes of a chiral multi-structure. These videos can be viewed either as separate avi files or as one Power Point file, where the videos have been embedded. This supplementary material also includes a PDF file with three auxiliary sets of diagrams.