Well, I found a way now - not quite as nice as a panel_chart such as described on that WebSite, but well, I could do that without first spending a lot of time getting cozy with Excel again.
I simply used the additional chart, stripped it of axes and legend, leaving only an x-axis_title and data_labels and then made it as thin as possible.
I guess that is that on this issue. I'll try out something else.

Best regards,

Officer_Bierschnitt