The program was originally developed to support Beilstein Handbook editors with a PC-based tool for naming compounds. Five copies are available on networked PC's in the Meyer Library . Creating the Carbon Skeleton Construct chemical structures by dragging and clicking mouse. When you left-click, a singled atom will be generated followed by an atom specification window.
Carbon is the default.
To change the atom type, don't move the mouse. Just use the arrows, letters, and return keys. To finish the structure building operation left-click again to determine the last atom. Move cursor to desired fragment. If you make a left-click, the structure is selected and automatically transferred to the screen for use.