What is the default columns of Smart System Panels?
Smart Issue Links Panel
The default are["issuekey", "summary", "priority", "status"]
Smart Sub-tasks Panel
The default are["issuekey", "summary"]
and the columns get from Jira Systemjira.table.cols.subtasks
Smart Issues In Epic Panel
The default are["issuekey", "summary", "issuetype", "status", "assignee"]