We are preparing to release new JIRA plugin - Custom Field Pack

Create unique experience for JIRA users! With Custom Field Pack you will be able to extend your JIRA with large library of custom fields:

• Linked Issue Details - filter and show any field from linked issues.
• Attachment Fields - configure you attachment view to match your preferences.
• Shields Field - add more awesomeness to your JIRA and create custom shields on your issues.

• RegExp Field - force custom validation of field values.
• Localized Number Field - present number with chosen locale.
• ToDo Field - Control progress of issues with small steps without overhead to create subtask.