question

Adding the sum to the partition is going to be easier than doing it the other way around.

First, you should be aware of the data format that is needed for the given chart type. The bar chart displays one bar group per row, in this case. One column determines the bar label, while other columns are used as the bar sizes. So what you need to do is to add a row to the statistics collector that stores the total input instead of the partition input.

You can do this by duplicating the event that the collector is listening to. For this copy, instead of determining the partition based on the token, just assign some value to the Partition label, that is otherwise unused. To do this, you first have to make the Partition label not shared between the events, so you can edit them separately. (The same has to be done for the Zone label, though it keeps the same expression in both cases, but the order of labels has so stay the same.)

In the columns tab, you then edit the code for the input value columns, so that it returns the total input if the Partition (the first entry in the array that is used as the row value) is equal to your chosen "Sum" value. Otherwise it still returns the partition input.

zone-partition-and-sum-fm.fsm