I have an existing Choice listing called "FFTP". This contains pipelines and facilities for Florida and also contain some for Alabama. Now I need to add a choice on the Survey123 form for Alabama, and only lists those facilities contain "Lowman" from "FFTP" list belong to Alabama. Due to linking with other external system such as Maximo, I like to minimize possible changes with related external system and try to see if I can accomplish with all tricks in Survey123. So far, I have not been successful. If I add "FFTP Alabama", the Alabama choice does not show up. If I add "FAL Alabama", the Alabama choices show up. This would mean that I have to add "FAL" to our external Maximo system. I like to check and get help on if I can accomplish my desired change, i.e. use existing FFTP choice list and not add "FAL" to show Alabama choice on the form. Your help will be greatly appreciated.