Line chart with Stacked Bar as Plot2

Hi,

am asking for some help/suggestion on how to tructure the data set, so that I can have the "main" chart be a line chart with a bar chart as "secondary" chart.
I cant choose a Line Chart as I do not know how to change the plot2 to a stack bar.
So am trying the negative approach, use the bar chart and use the plot2 to draw the line chart, I am getting stuck on selecting "plot2Series and plot2SeriesIndexes" for multiple series.

DS
Date|block1|block2|block3|block4|block5|linepoint1|linepoint2|linepoint..|linepointN

Aim:
https://ibb.co/fN5p3y




Current:
plot2SeriesIndexes=linepoint1 (But the names change, and dont know how many)

https://ibb.co/jE7abJ