We derive explicit closed formulas for the Kirillov-Kostant-Souriau (KKS) coaction maps of open path regularized holonomies of the Knizhnik-Zamolodchikov (KZ) equation, and the corresponding Poisson brackets for the Lie algebra {\rm gl}(N, \mathbb{C}). Our main technical tool is a certain projection of the generalized pentagon equation of \cite{AFR2024}.