Just posted a new addon: ofxParameterCollection
It manages an indefinite number of ofParameters of the same type while providing simple serialization, deserialization and notification. The class is useful in situations where you would like to work with ofParameters but you don’t know ahead of time how many parameterized items you will have. In essence, the class is like an std::vector for ofParameters, and its use cases are similar to that of std::vector, but it also provides deserialization and notifications of changes in the collection (both when items are added or removed and when a value in the collection changes).
Hope it is useful for others!