Hello @Michele Wilson
Welcome to the Atlassian community.
Is that a screen that pops up when you change the issue status?
What change do you want to make to that field? It appears to be a checkbox field. Do you want to add more values to the list? If so, you will need to modify the custom field.
https://support.atlassian.com/jira-cloud-administration/docs/configure-custom-field-context/
If the field has only one context (one set of values) used by all projects, then you need modify only the one list.
If the field has multiple contexts (different sets of values used by different projects) then you will need to find the context associated with that specific project and modify just that list.
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