Jenkins-Jira/Zephyr Scale Integration - API Key Instructions Out of Date?
Firstly, thank you for the detailed post.
I checked my Jira profile and I do see the option so I'm guessing this has something to do with a permissions or configuration setting, but one that I can't seem to find.
Someone in this community might know how to fix this issue, but I would hedge your bets and contact Smartbear support for advice (SmartBear Support) and in the meantime you could try the link below, which is what I get when I click on the 'Zephyr Scale API Access Tokens' link, replacing the "[YOUR REF]" values with your own which you can find in the URL bar when you're in a Zephyr Scale page.
https://[YOUR REF].atlassian.net/plugins/servlet/ac/com.kanoah.test-manager/api-access-tokens?project.key=[YOUR REF]&project.id=[YOUR REF]
Please do share the answer to the issue if you find it 🙂