# Specifying Species

Species are created by designating a grouping of one or more molecules on the Editor Window. Bonding between components is created as needed by the addition of edges while in add edge mode. This grouping is selected from the Editor Window while in object manipulation mode and dropped into the Species Palette. As with molecules requiring registration into the Molecule Type Palette, species must be registered into the Species Palette in order to be used in forming reaction rules.