Follow these instructions to learn how to change the order of the images in a gallery.
On the website page, click the gallery.
The settings panel opens on the right side of the Website Builder.
Click the icon to open the Image Order settings.
Click the Click here to add images button. The Image Order panel opens.
In the Image Order panel, select the image that you wish to move, and drag the image to the desired location.
Click the Done button.
Click the icon to close the settings.
The image now appears in the new sequence order in the gallery.