Refinitiv does not sell any add-ons to Metastock Xenith. The arrangement between Metastock and Refinitiv is that Metastock can only sell Xenith to retail investors. This product cannot be sold to professional or institutional clients. According to our market segmentation the level of functionality you're looking for disqualifies you as a retail customer. If you're looking to consume Refinitiv data programmatically your options are to sign up with Refinitiv as a professional client for either a terminal or a datafeed.