Prompts you for a data item name, which can be entered in upper or lower case. Following a successful query, the Query Data-name menu appears on the screen with the queried data-name on the information line and the value of the data item in a window or at the bottom of the screen. To alter the contents of the queried data, simply type in a new value. The new value replaces the item's previous value.
If you are working with nested programs, you must be positioned in the program in which that data item is defined for this function to work successfully.