To create a new custom panel layout
Once you close the tear-off panel, it can be used by panel layouts that include it.
To assign a custom layout to one of the icons in the Quick Layout bar below the Tool Box
 on the
            thumbnail you want to assign the new layout to, and select the layout
            from the menu.
  on the
            thumbnail you want to assign the new layout to, and select the layout
            from the menu.
          on the thumbnail
            again and select Change Image. You can select
            a pre-made image or load an icon image from a file.
  on the thumbnail
            again and select Change Image. You can select
            a pre-made image or load an icon image from a file.