Classified Section, Changing Main Picture?

Hello, I just posted an ad to list a car. After I uploaded the pictures I didn’t like the order. I posted, then went to edt, moved a couple “Attach” lines around, but the main picture on the page is of the shed!

Can I change that?

*Edit, I deleted the shed picture, but Can I select a main picture that shows up on the classified main page?

Here is the post, thanks in advance!

https://www.jalopyjournal.com/forum/threads/1932-ford-model-b-4cylinder-barn-find.1204901/

 

A picture of the car can be seen on the main page.

The last picture isn't showing.