You can add a different banner to each page of your website.
Go to the Editor.
Hover the mouse cursor over the banner and click on the Edit button.
The menu on the left will change to allow you to edit the banner. To apply the banner to this page only, click on the As default drop-down menu on the left and select On this page.
Click on Save.
If you enable the On this page option for each page of your website, you can add a different banner to each page.