Ok, if it's not appearing in the marketplace search under addon management, then it's not valid for your version of Jira. You could visit it in the marketplace and try downloading and installing it via "upload plugin", but as it's not valid there's a good chance it will not work, and it's certainly not going to be supportable.
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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