Persist legend location and flags

Hi!

Thanks for this great library. I have a question: How do I persist the location and inside/outside flag of the legend so that if the app is closed and opened again the legend is still at the same position. Is there a method to query the state of the legend?
Or something like SetupLegend(ImPlotLocation *location, ImPlotLegendFlags *flags) with references which modifies the current location and flags when the user configures the legend. Then location and flags could be saved on exit and loaded on start of the app.