Quality selection in charts/graphs: persist prior options

[admalledd]

Currently in the various charts/graphs (Production, Electrical Network) there is a drop-down to select which quality to show: [All (Separate), All (Merged), Normal, Rare, Epic, Legendary]

However, this option does not persist if I close the window, and always gets reset to "All (Separate)". Often I personally want "All (merged)" OR I am looking at only one production chain on my specific platform/planet and wanting to know only the Rares/etc for a decent amount of time. So this request is for each window type to remember the last mode it was in, preferably even what tab as well as the timescales too. I don't think this needs to persist in the save file itself or anything?