You can attach .jpg .png .pdf or even movie files to your 3D comment cards, and make it into an interactive presentation.
Click on a comment card you just created, at the bottom of the card, click "add files".
A window will pop out, you will have the options to
1) upload a file from your computer
2) select a file from the Asset folder
After selecting the file, click "choose". Now you should be able to see the file you just attached at the bottom of this card.
When you are ready to present, hit the present button at the top of the panel, and use your arrow keys on your keyboard to scroll between comments. When there is a comment attached to the card, you will see a thumbnail at the bottom right corner of the screen. Use the left and right arrow key to open and close attachment.