Represents a collection of CQGInstrument objects.

In this collection, there are instruments that are subscribed, or which subscription level was set to dsNone, but they were not removed.
Access to an item in this collection can be made based on Instrument Full Name or Instrument ID.
See Accessing non-existent collection items for details on accessing items that do not exist in the collection.
See the usage of CQGInstruments collection in CQGCEL Instruments property's example section.