Applies To - The list is used as a dimension for these modules listed in this
Referenced as Format - A line item is using this list as a format. This list members will be available as drop down in the line item
Referenced in Formula - The list is referenced in a formula, for eg, functions like Finditem, item, uses the lists as an argument
Next item index - Each member is assigned a specific index. Once an index is created, it is not reusable even after deletion of the member. Generally this is not so used in modeling. Only when a list index crosses 1 billion mark, we have to reset the list.