ETS Jira Production System - The plugin "Quick Subtasks for Jira", which allowed the creation of multiple subtasks has no active development and vendor support. The plugin is incompatible and has been disabled in our instance. If your teams use the plugin, kindly work with our Dev Tools Support team to identify and implement the alternative solutions, if any. Thanks . For CIO JIRA and Confluence related requests or queries please create a Jira/Confluence Issue .