...
Once you’ve found the Apps page, you can simply locate the Custom Charts for Jira or Custom Charts for Confluence trusted app, and select Install!
Once you’ve installed the Trusted App, you can now load data such as Tempo worklog author into any Custom Charts gadget or macro.
Note: Custom Charts for Jira occasionally return more time spent on an issue than is reported in Timesheets. This occurs when the Jira and Timesheets worklogs don't match.
...