I created a pie chart with a legend showing the categories and the corresponding values and dragged the legend to the bottom of the chart via CTRL+SHIFT.
What do I have to adjust in order to get the legend in two or more columns instead of having to scroll down each category...
What you can do is disable the legend in the pie chart and create a straight table object and format it so it looks like a legend. You can find an example here.
That sounds impressive, I am also quite attracted to this chart legend question. Unfortunately, I got to know this is impossible. I am not familiar with the chart thing, now it is told that the legend in pie chart is impossible. I reckon that it is also impossible in the line chart or bar chart and so forth? Maybe I misunderstood what legend is.
