This item is checked because the current magnification is 12x12 screen dots. Changes the display magnification to 12x12 screen dots. Decreases the display magnification by one level. Increases the display magnification by one level. This item is checked because the current magnification is preview size. Changes the display magnification to preview size. This item is checked because the current magnification is 10x10 screen dots. Changes the display magnification to 10x10 screen dots. This item is checked because the current magnification is 8x8 screen dots. Changes the display magnification to 8x8 screen dots. This item is checked because the current magnification is 5x5 screen dots. Changes the display magnification to 5x5 screen dots. This item is checked because the current magnification is 3x3 screen dots. Changes the display magnification to 3x3 screen dots. This item is checked because the current magnification is 1x1 screen dots. Changes the display magnification to 1x1 screen dots. This menu is disabled because no map files are open. Changes the display magnification of Bolo maps.