You can actually do this extremely easily using a custom ScriptRunner web item! I'll like you to the documentation here.
In the configuration for the web item, you can specify specific sections of JIRA to place the item, including Tempo's:
We're excited to announce the release of a long-requested feature on Statuspage. Now visitors to your status page can subscribe to get notified in Slack when you report an incident or maintenance. Th...
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