From now on Charta supports the new collection type Set. It can be used to store and retrieve objects when their order is not important.
The new collection type Set has been added to store an unordered collection of objects. Although the order of the members of a set cannot be manipulated, a set does expose its members through an integral valued index. For instance, one can get the fifth element of a set.
The set has not been fully implemented yet, support at various levels in Charta will be added over time. The class Set is intended the be an efficient means of storing and retrieving objects when object order is not important. This efficiency will also be gradually improved upon over time.