Syntax: set hetero <boolean>
The RasMol hetero parameter is used to modify the `default' behaviour of the RasMol select command, i.e. the behaviour of select without any parameters. When this value is false, the default select region does not include an heterogenous atoms (refer to the predefined set hetero ). When this value is true, the default select region may contain hetero atoms. This parameter is similar to the RasMol hydrogen parameter which determines whether hydrogen atoms should be included in the default set. If both hetero and hydrogen are true, select without any parameters is equivalent to select all.