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Drag the issue to a day in My Work to log time against that issue.
Drag the issue to a day for a resource (user) in the Resource Planning view to plan time for that issue.
Find and select an issue from Log Time form or Plan Time form
Log time or plan time to open either the Log Time form or Plan Time form.
Click in the Search box to display the issue lists.
Select the issue to either log time against it or plan time for it.