ChemDraw Chem3D: Where do I find help on all the MOPAC parameters

On the Help menu, indexed under "MOPAC", ChemBio3D includes a 27-item online manual, focused on how to use MOPAC in ChemBio3D. For more technical details, ChemBio3D's online help includes page references to MOPAC's full manual, which is available at http://www.openmopac.net/ -- this manual includes fuller descriptions of the theory underlying MOPAC and other aspects beyond basic usage. See a complete video on this question and related topics at: http://images.cambridgesoft.com/chemstore/ChemClip/Chem3D/MOPAC_Documentation_demo.htm