Background:
I have a custom field "Assignee(s)" which is a multi user picker.
- Group 1: Amy, Ben
- Group 2: Carol, Danny
The "Assignee(s)" field can contain members from both Groups 1 and 2.
- e.g. Assignee(s): Amy, Carol
Problem:
I would like to show issue statistics in the dashboard by Group 1.
My jql now is "Assignee(s)" in membersOf("Group 1")
- e.g. Example of Issue Statistics Dashboard Gadget:

I would like Assignee(s) to only show "Amy" | 9 | 90% for example.
However, now the issue statistics is showing both
- "Amy" | 9 | 90%
- "Carol" | 1 | 10%
I would like to omit any users in the "Assignee(s)" field that do not belong to Group 1 (i.e. remove Carol from the Issue Statistics Gadget).
Is this possible to configure via JQL?