You cannot edit the predefined layout named Default layout.
To edit a layout:
In the application web interface window, select Dashboard.
In the list of layouts, select the layout that you want to edit.
In the upper part of the window, click .
In the drop-down list, select Customize.
If you want to rename the layout, type the new name in the field containing the current name of the layout.
If you want to add widgets to the layout, click Widgets and perform the following actions:
In the Add widget window, select check boxes next to the names of widgets that you want to add to the layout.
Click .
If you want to move a widget on the layout, drag the widget to a new location on the layout by left-clicking and holding down the left mouse button on the upper part of the widget.
If you want to remove a widget from the layout, click the icon in the upper-right corner of the widget.