Creates a new set.
You can also create sets by selecting Edit > Create a Set from the Alias main menu. After creating a set, you can work with them in the Object lister. See Work with selection sets using the Object Lister.
Exclusive – Members of the new set can not be in any other set.
Multiple – Members of the new set can be in other sets.
After a set has been created, you can change whether it is exclusive or multiple in the Set Editor window by changing the Set Type option.