Applying FB-ENM to the direct MaxFlux method, 9 which we recently developed, yields the shortest collision-free path preserving the structural elements (Section 2.3). We added a routine for generating reaction paths using FB-ENM to our Python implementation of the direct MaxFlux method based on the Atomic Simulation Environment, 17 available on GitHub. This routine automatically generates plausible reaction paths, only requiring the reactant and product structures as input, and was used for the path generation in Section 3.