I've found the answer and would like to share it with the community.
First, the page should depend on
If you want to show this dialog from standard search page or view issue page, then this dependency has already been included.
In my case I have a custom page and my own web-resource with my button, so I've just added this dependency to the web-resource.
Second, need to know the ID of the issue.
And finally, the code:
In the past, Portfolio for Jira required a high degree of detail–foresight that was unrealistic for many businesses to have–in order to produce a reliable long-term roadmap. We're tur...
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