JIRA doesn't have project level fields, the header in your screenshot is a fixed list.
As well as the request Tarun mentions, there's an add-on called "Pro Fields" which implements project fields (and enables some of them to be summaries and calculations). Might be worth a try, rather than waiting or writing your own.
I’m a designer on the Jira team. For a long time, I’ve fielded questions from other designers about how they should be using Jira Software with their design team. I’ve also heard feedback from other ...
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