Email Custom Field
The Email custom field lets you record an email address associated with an issue, with format validation and integrated search support through Jira's engine.
Traffic Light KPI Custom Field
The Traffic Light KPI custom field lets you store a numeric value per issue and display it as a visual indicator in three colors — 🔴 red, 🟡 yellow, and 🟢 green — resolved from configurable thresholds per context.