A system for automatically defining the spatial arrangement of structural components and optimizing the functional positions andor quantities thereof is useful for design and production of an aircraft cabin. A layoutparts list display control unit defines a layout area and a parts list area in a screen on a display unit on the basis of layout data and part data, displays one layout or a plurality of layouts in the layout area, and displays a list of parts to be inserted into the layouts in the parts list area. The methods and embodiments herein further involve removal of the conformal carbon layer from the bottom portion of the patterned photoresist and the hardmask by an etch process to expose the hardmask, etching the exposed hardmask substrate at the bottom portion, followed by the simultaneous removal of the conformal carbon layer, the photoresist, and other carbonaceous components.