Analysis calculations and region definition are in EventProcessing description Here are the Histograms to make for each region Binning of histograms is defined with regular expresion matching
Samples and cross sections are defined for 2016,2017,2018
Models describing how to combine and group the samples, which samples to use etc are also defined in model files separatelly for the Z region (2016,2017,2018 ) and the H region (2016,2017,2018 )
Weights and systematics are defined in dedicated file and are enabled in the analysis steering code