File | Settings | Version Control | Issue Navigation - Add

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Use this dialog box to create an issue pattern and navigation link to a bug tracking system.

ItemDescription
Issue ID (regular expression)In this field, type a regular expression that will be converted to the a specific issue id.
Issue link (replacement expression)In this field, type a regular expression that will be converted to a navigation link to the issue.
ExampleIn this section, type some specific issue id to make sure it matches the specified pattern:

add-issue-nav-link