where is the swimlanes in the boardsetting?
Under board settings > swimlanes
You knew that already, I think the problem is that you are looking at a board that does not have them, or you are not an admin of the board.
Talk to the board owners, they can add you as an admin.
For a Team Managed project you are limited to the Group By options in the upper right corner. This is not part of the board settings.
For a Company Managed project click the ... button in the upper right corner of the board and select Board Settings.
Then click the Swimlanes option in the new window.
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