my ebay -> selling -> sold/unsold, how to adjust period

[pansophic.innovator]

in the my ebay selling menu, under sold or unsold section, the longest default period I could choose under the drop down menu are 60 days, but there's another option called custom that is set for 14 days on my drop down menu. I want to see how I can adjust this custom number of days, but unfortunately I can't find any way to adjust this custom number. is it possible to make it 90 days or even longer than that?

[pocomocomputing]

My eBay maximum days is 60 days. All (?) other eBay tools show 90 days.

Selling Manager (basic not pro) is free and shows 90 days. You can subscribe to it for free.

eBay only keeps 90 days of listings after they are sold or unsold.