How to rename the forecast label

Hello,

 

When I use the forecast tool I get Forcast1, forecast 2, forecast 3... I also do see an option to change the word forecast , but what I don't know is how I change it to be the next 6 months. Ie. June forecast , July forecast , August forecast , etc. ect.

I saw on another post that this option is available, and has been since the 2020 version, but I cannot figure out how.

 

Thanks!