You can rename your images in the Client Panel through the "Image Settings" tab:
For information on how to access your client panel, see this article.
Scroll to the image you'd like to edit, and edit the title or description to the right of the image. Your edits will auto save as soon as you click outside of the text box!
You can also select if you'd like the image visible on your tour, visible in your download gallery only, or to hide it from your tour AND your download gallery through the settings to the right of the image.
"Visible Always" - The image will be visible in both the tour and available for download in your Download Center
"Visible In Gallery Only" - The image won't be visible on your tour but will be visible in the Download Center
"Never Visible" - The image won't be visible on your tour but will be visible in the Download Center
Your edits will auto save as soon you as you click outside of the text box!
Here's how it shows up on the tour:
Please note that different templates display this information differently. Try it out! If you need help or you would like help switching your tour design, you can reach us by chat, email us at firstname.lastname@example.org or call us at 1-844-443-7325.