This feature allows you to choose which action to take when inserting a new element into the playlist.
AUTO_INSERT_ITEM_MODE: The menu allowing the choices Before, After and Replace will be proposed.
AUTO_INSERT_ITEM_AFTER: The item will automatically go after the target step.
AUTO_INSERT_ITEM_BEFORE: The item will automatically start before the target step.
AUTO_INSERT_ITEM_REPLACE: The item will automatically replace the target step.