This menu is used to modify the graphic data base.
- Add Structure : Adding a structure number in the CSS
- Delete Structure : Destroying a structure. Simply click on the structure number (in the browser) with the cursor in the form of a skull. Mouse button 3 inactivates this destruction.
- Delete Element: Destroyng an (or, a group of) element(s) of an object (of a structure).
Two methods are used to destroy an element :
- Number : With its number (position) in the object (structure)
- Mouse : With the cursor by clicking on the icon representing the corresponding element. Inactivate with mouse button 3.