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A global keyboard shortcut is available for SU, to see available shortcuts press ?, to trigger the SU prompt, press the combination g ^ (the ^ is shift 6!)+ u, then you will get:
| User Prompt | User Selection | Ready to Submit |
|---|---|---|
 |  |  |
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For the time challenged, assuming no other customizations, copy the appropriate file to /atlassian-jira/secure/admin/user/views/userbrowser.jsp
The manual approach
Jira 3.x - 4.1.x Add the following beneath it:
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