Sorry, I really undesrtand wrong. :/ Lemme try help you.
At the moment, this is not a functionality of JIRA, but did you check if any of the Add-ons that extend Labels have this at? https://marketplace.atlassian.com/search?application=jira&category=&cost=&hosting=&marketingLabel=&q=label
Maybe one add-on will help you.
In the past, Portfolio for Jira required a high degree of detail–foresight that was unrealistic for many businesses to have–in order to produce a reliable long-term roadmap. We're tur...
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