To add an image into a More Information box you first need to upload your file to the Resources Manager.
This can be done by selecting the third icon from the left hand menu followed by Resources Manager.
Upload your image and once done, select the copy icon to copy the resource URL.
Then open your More Information pop-up and select the Insert Image icon and paste the URL you have copied into the Source field.
Click and drag a corner of the image to resize.
You can also link to a document from a More Information module. Simply upload your document to your Resources Manager, copy the link and add a link within your More Information module.