Navigate to either the Classic Planning Board, Classic Task Board or Classic Chart Board:
Include Page
_PlanningBoardNav
_PlanningBoardNav
nopanel
true
_PlanningBoardNav
or
Include Page
_TaskBoardNav
_TaskBoardNav
nopanel
true
_TaskBoardNav
or
Include Page
_ChartBoardNav
_ChartBoardNav
nopanel
true_ChartBoardNav
Select your project from the project dropdown in the top navigation bar, if it is not already selected.
Find the issue that you wish to flag.
Open the 'Actions' drop-down menu for the card by clicking the icon (which will appear when you hover over the Issue Type or Priority icons).
Select Flag from the drop-down menu. The issue will display a symbol against it when you view issues as 'Summaries' or as a 'List' (the symbol will be at the end of the row when viewing issues as a list).
If you want to unflag the issue, simply open the 'Actions' drop-down menu for the card and select Unflag.