Hi there Patty thanks for posting in the Lucidchart Community. While you can mass upload images via the image icon in the editor it is currently not possible to automatically fill tables or shapes with them. 

However we're always looking for ways to improve Lucidchart and your feedback is the best way for us to do that. Would you mind adding your idea to our feature request form? Ideas submitted to this form are passed on to the product development team for their consideration. Thanks for your request and I apologize for any inconvenience this causes you.

For anyone else interested in using images in Lucidchart please take a look at the Access Organize and Share Shapes as well as the Modify Format and Style Shapes Help Center articles.