How to add a Trendline to a chart inside sheet?

How to add a Trendline to a chart inside sheet?

 Hello Zohos


I am very please with the improvement of Zoho Sheet since I used it last time


Im still missing one thing that I easily have access to in MS excel : Add trend trend line

I found a way to calculate the regression line by:

=FORECAST

=SLOPE

=RSQ


But I'm pretty confused how to get the line on the chart with the data.

Are there any solution to this?