Refer to the below attached video for the same.
We can upload/Add or remove Hotel Images on the Booking Engine.
Refer to the below detailed steps.
1) Login into the new Centrix and go to Old Extranet.
2) Property Setup >> Images >> Upload Photo
Upload: From upload photo, we can Add a new Images
X: From a cross mark, we can Remove the images.
IF you are looking to change the images then first remove the images from Cross ( X ) and then add (Upload photo) a new Images.
Once we uploaded images these images are reflected on the Booking Engine at Hotel Info,
Refer to the below screenshot,