Hi there!

To make your image more prominent you can add a larger version in Layers and link it to the smaller image using Actions. Alternatively you can use Actions to hyperlink to the URL of an image opening it in another tab. I would recommend watching our Create Multi-Layered Diagrams Tutorial to learn how to use layers and our Add Links To Your Document Tutorial to learn how to add actions to shapes. You can also find step-by-step instructions for a similar use case in this community post. 

If these features don't quite work for you please add your idea to our feature request form! These requests are sent directly to the development teams for their consideration and helps inform which features take priority.

Please let me know if you have any questions!