I am trying to select stocks from certain exchanges only for my universe. If I am correct this only possible for stocks that have fundamental data. In the fundamental data there is the PrimaryExchangeId property and the ExchangeId property, however I don't know what the Ids mean / what to expect. The quantconnect and morningstar documentation refers to a separate exchange mapping document (https://www.quantconnect.com/docs/data-library/fundamentals#companyreference-primaryexchangeid) but I can't find this document. Does anyone have experience with this?