For my project I create multiple projects and want to track their ROM and RAM usage. To have a complete overview, I want to have all ROM statistics in a single plot, and all RAM statistics in another plot.

With the 'java properties file' source, it's possible to define a custom label. Right now I'm using .csv files instead. The problem that I run into is that all my data series all define the their own RAM value, which means that only the last value is remembered.

The solution for me would be to make the 'Data series legend label' field available for all data source types. In my case I'd call the plot 'ROM usage' and each data series by the projects name.