Method: BOOK_BOOK
Method: BOOK_STORNO
Method: UNLOCK_FOR_EDIT
Method: POS_INSERT
Method: INIT_STRUCTURE
Method: POS_CHANGING
Method: LOAD_DATA_SPEC
Method: SAVE_DATA_SPEC
Method: LOAD_DETAIL_POS
Method: NEW_DATA_SPEC
Method: SAVE_DETAILS
Method: INSERT_DATA_SPEC
Method: PREPARE_LOCK_FOR_EDIT
Method: GETKEY
Method: CHECK_WDPLANT