Hi Christopher

Thanks for your post. We don't have a specific template for EPC but you can create EPC diagrams through regular flowchart templates and using custom shapes where necessary. I recommend checking out this article for more information. 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 Product Feedback section? Ideas submitted are passed on to the product development team for their consideration.

This really needs to be added native. The hexagon shape in paticular.