I am trying to set up a SAFe style hieracy in Portfolio for Jira of EPIC>Feature>Story. It looks like that isn't possible without modifying the in-built Epic issue type to be a feature. I was hoping in the interim to at least make Epic & Feature at the same level in the portfolio however when I attempt to do this every issue type apart from feature appears in the drop down (yes i have scrolled up and down
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Issue Type:

Portfolio hierarchy options:

