Currently, the sub-task view in an issue only contains 2 tab which are 'All' and 'open' to list down all the sub-task issues and the unresolved sub-task issues. It would be great if we can provide a new plugin module type (e.g. sub-task tab panel plugin module) to enable the user creates their own sub-task tab panel in an issue.
This could be something similar to 'Issue Tab Panel Plugin Module' which described at the JIRA Plugin Guide:
For more information on the way new feature and improvement requests are scheduled please see:
http://confluence.atlassian.com/display/DEV/Implementation+of+New+Features+and+Improvements
Cheers,
Anton