Is it possible to add a trendline to a 3-D Clustered Column chart? If so, how do I do it?

[freeb1893]

I clicked the + sign button on the graph but I don't see that option. Assuming it's not possible, but figured I'd still double-check.

Is there some reference material out there what graphs you can add a trendline to and which charts you can't add a trendline to? Thanks in advance

 

[myall_blues]

It's not possible.

You can't add a trendline to a data series in a stacked, 3D, radar, pie, surface or doughnut chart.