Thanks!
I have been working on it for a day and pretty much is doable.
Though i must say it’s pretty trial and error(-sensitive).
I know javascript (just) enough to edit some things, but the overall structure can get pretty complex quickly.
I am still searching / hoping that i can find a perhaps an easier way or live-tool to design&build the graphs that are needed.
Is there perhaps some other system that i could try/use? Just a little bit easier/faster than chart.js?