Method: DELETE_CHECK
Method: GET_DATA_EXT
Method: IF_DPR_COMMON~IS_CHANGEABLE
Method: SET_DEFAULTS_SEQ_NR
Method: ADD
Method: DELETE
Method: GET_ALL_ORDERED
Method: TOOL_NR_CHANGE
Method: GET_SUCCESSOR
Method: SEQ_NR_CHECK
Method: PROCESS_NR_CHANGE