Aggregated graph for all zones.
Related to https://feedback.heatmiser.com/suggestions/62176/boiler-burn-time-reportinggraph-neohub-gen-2 which suggests it is possible to see the aggregated total (how long heat was called for across all zones). However, Dan confirmed this is only at individual zones.
Could we have an aggregated view which shows when the first zone calls for heat, up to the last zone asking for heat to stop?
It would also be useful to see the number of zones calling for heat.