how to get "more trendline options"

[morganferry]

Hi, I need to add the equation for the trendline but I do not have "more trendline options" to select. 

[#2]

@morganferry Once you have inserted the trend line, right-click it and select "Format trend line". Now you can select "Display equation on chart".

[#3]

@morganferry 

What @Riny_van_Eekelen suggested shall work, but in this case More trendline options also also shall be

On which version of Excel you are?