Hull Component List
More Stars! Dialogs
The hull component list is the parts inventory used to build or edit a hull. New components are automatically added to the list as construction research levels increase.
Selecting a component category from the dropdown list screens out all other components. This can save time when the list of all components becomes too long for a quick scroll.
When a component is selected, the cost and mass of the item are shown in the lower-left corner of the Ship Designer dialog.
Read about:
Hull Schematic
How to Design Ships