Reply by Authors. Issue 6 (1st December 2021) - Pizzol, Damiano; Trott, Mike; Grabovac, Igor; Yang, Lin; Barnett, Yvonne; Parris, Christopher; McDermott, Daragh T.; Veronese, Nicola; Kronbichler, Andreas; Ghayda, Ramy Abou; Soysal, Pinar; Jacob, Louis; et al.