Hi there Patty thanks for posting in the Lucidchart Community. You can publish your document and access it via the publish link to be able to use hotspots with a simple click. For more information on this please take a look at the Publish Your Document Help Center article.

If you would like to use hotspots by just clicking on them in the editor would you mind adding this idea to our product feedback space? Ideas discussed here are passed on to the product development team for their consideration. Thanks for your request and I apologize for any inconvenience this causes you.

If anyone else is interested in using layers in their diagram the Add layers to a Lucidchart document Help Center article can give you more information on this.