how to add a trendline in a combination chart ?

[ckkphp]

Hi, i am using fusion chart v2.3, i have difficulty to add a trendline in the 3D column line dual Y.

 

i use

 

 

to generate the trendline, its no problem for single Y graph but cant display the line in 3D column line dual Y,is there anyway to solved it??

[Pallav]

You cannot do so in FusionCharts v2.3 - It's possible only in FusionCharts v3.