POPal can assist you to generate Epic, break it down into user stories, refine a user story with proper format, acceptance criteria and generate test cases with test automation scripts.
Note: User stories will not be generated from the Epic if you have required fields configured for user stories or test cases, except for (summary and description). However it will work if you set default value for the required fields through field configuration.
Installation, Configuration and Use cases (DC Version)
Creating User Stories from an Epic
Formatting User Stories with Acceptance Criteria and Test Cases