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1. In the Layouts drop-down list, select the required layout shape.
   
   If you select the Random layout item, the window will open, where it is necessary to specify the number of cells in the layout, vertically (columns) and horizontally (strings).
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2. You can adjust the layout shape manually using the <, >, ∨, ∧ buttons. Each click of these buttons expands the cell by 1 position in the corresponding direction.
   In order to remove unnecessary empty cells along the border, select the Delete empty by border item from the Layouts drop-down list.

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