Build a Trendline based on user input

[Razia69]

Hello,

I want to know if it's possible to cutomize a trendline in a linechart with user input values.

I have a line chart with a month-year dimension, I would like to give the opportunity to a user to create a trendline and choose every value for each month.

I dont think it's realy possible with a variable input that we set to multiple values, but I want to know if there is another way to solve my issue.

Thanks for your help