I have not see a way to do this without perhaps modifying the source code but I have seen this question asked before. At this point I would recommend creating a Suggestion request on JAC. When you do please post the link here so the Community can vote on the issue.
In the meantime there may be third pary calendar add-ons that perform in this manner.
Hey Atlassian community, I help lead engineering at Sentry, an open-source error-tracking and monitoring tool that integrates with Jira. We started using Jira Software Cloud internally last year, a...
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