12.2 Auto-Editing Options

There are a number of options available for editing a structure automatically; to access these hit the Modify button in the top-level menu and select Auto Edit... from the resulting drop-down menu. This will launch the Auto Edit Structure dialogue:

The following options are available:

Guess bond types: select the Guess bond types check box, then apply this to either All or Only bonds with unknown types.

Standardise bond types: select the Standardise to Cambridge Structural Database conventions check box. This can be applied to Aromatic bonds, Delocalised bonds or Both.

Add missing hydrogen atoms: select the Add missing H atoms check box. The number of hydrogens added to each atom will be sufficient to satisfy the atom's unfilled valencies.

Hit the Apply button to automatically edit your structure according to the selections made.