Keep CakePHP's layout but modify it

Is there a way to modify CakePHP's default layout without needing to make my own? I am in the process of developing the back-end but would like to have something easy to looking at in the front-end for testin开发者_JAVA百科g.

I know I need to make default.ctp in views/layout but but I don't want to make a layout from scratch.

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Copy the default.ctp layout from cake/libs/views/layouts/ into app/views/layouts/ and modify it as needed.