The preview image is the main thumbnail that represents the service in lists and summary pages.
Procedure
1. Access the edit screen of the desired service.
2. Click on the section (or tab) titled Images.
3. Locate the field labeled Preview.
4. Click on the selection area or the upload button associated with the Preview field. This will open the Media Library.
5. In the Media Library, upload a new image from your computer or select an existing file.
6. After selecting the image, make sure it is displayed as the preview in the Preview field.
7. Click the save button to confirm and apply the changes to the service.
