Dashboard Layouts
You can choose among four layout types for every page that supports dashboards. Select your preference from the Layout dropdown list in the upper right of the page.

The available layout options are as follows:
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Two-column, narrow on the left.
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Two-column, narrow on the right.
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Three-column, wide in the middle. For three-column layouts, the minimum screen width is 1400 pixels.
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One-column.