Hi Guillaume,
Sorry for the wait for the reply!
The idea here is that you would need to inherit the country custom field value from the Parent issue to the sub-tasks. Here are couple of examples how to do it with Javascript calculated custom field:
- Aggregate story points on stories under a epics grouped by a custom attribute
- Issue count by parent Issue Dimension
Note that you would use the following parameter for inheriting from standard Parent hierarchy: update_from_issue_key = "subtask_parent_key"
Please let me know if you have further questions regarding this!
Lauma / support@eazybi.com