1. A method comprising: receiving an indication of at least one set operation; receiving an indication of a selected group of entities, the selected group comprising a plurality of entities, the entities: being associated with one or more properties, including at least one entity from a first object, and including at least one entity from a second object; determining, using a processor, a group of properties for the plurality of entities, where the group of properties is defined by the at least one set operation; providing a representation of the group of properties; receiving, an instruction to perform an edit operation on at least one of the properties of the group of properties; and applying the edit operation to the entities associated with the at least one property.