Two ways of comparing a set of values in ABAP.

ABAP_compare_set.abap

METHOD ENABLE_OCA_BUTTONS.

  DATA: lv_status TYPE j_estat
      , lo_current TYPE REF TO if_bol_bo_property_access
      , table_rows TYPE i
      .

  FIELD-SYMBOLS: <status> type RSDSSELOPT.

* default condition to false and change if in correct status
  rv_enabled  = abap_false.

  DESCRIBE TABLE me->status_range LINES table_rows.
  IF table_rows = 0.

* BUILD range object
    APPEND INITIAL LINE TO status_range ASSIGNING <status>.
    <status>-option = 'EQ'.
    <status>-sign   = 'I'.
    <status>-low    =  'E0001'. " new

    APPEND INITIAL LINE TO status_range ASSIGNING <status>.
    <status>-option = 'EQ'.
    <status>-sign   = 'I'.
    <status>-low    =  'E0002'. " inprocess

    APPEND INITIAL LINE TO status_range ASSIGNING <status>.
    <status>-option = 'EQ'.
    <status>-sign   = 'I'.
    <status>-low    =  'E0011'. " on hold

  ENDIF.

  lo_current = collection_wrapper->find( iv_index = iv_index ).
  IF lo_current IS BOUND.

    CALL METHOD lo_current->get_property_as_value
      EXPORTING
        iv_attr_name = 'STATUS'
      IMPORTING
        ev_result    = lv_status.

    IF lv_status CS status_range .
      rv_enabled  = abap_true.
    ENDIF.
  ENDIF.
ENDMETHOD.

*! verses

METHOD enable_oca_buttons.

  DATA: lv_status TYPE j_estat
      , lo_current TYPE REF TO if_bol_bo_property_access
      .

  CONSTANTS: status_set TYPE string VALUE 'E0001 E0002 E0011' " NEW / INPROCESS AND ON HOLD
           .

  lo_current = collection_wrapper->find( iv_index = iv_index ).
  IF lo_current IS BOUND.

    CALL METHOD lo_current->get_property_as_value
      EXPORTING
        iv_attr_name = 'STATUS'
      IMPORTING
        ev_result    = lv_status.

    IF status_set CS lv_status .
      rv_enabled  = abap_true.
    ENDIF.
  ENDIF.
ENDMETHOD.