Sorry, each column has to have the same width. There is currently no way to change this in our 3D charts.
there is another way how to draw a chart with diffrerent width columns
Could you share how to change the width of the different columns. Actually, I only need to change the column width for all chart bars to the same width value. Also, anyone knows how to adjust the spacing between the bars and the space between the y-axis and the first bar.