When a COMBOBOX is rendered, the native user interface on desktops and browsers on desktops will normally allow the user to use the keyboard to select a value. By paying careful attention to the values in the drop-down list, you can facilitate the use of the keyboard and keep the keystrokes the same as they were in the TUI interface.
By including the item value in the description e.g. ITEMS = (("A", "A-Group A),("B", "B-Group B"), ("C", "C-Group C”)), then if the native ComboBox allows it you can press A,B, or C to select the appropriate value
Read more at
https://4js.com/ask-reuben/ig-56/