tree list issue!

hi

i know using function:

CALL FUNCTION 'RS_TREE_CONSTRUCT'

• EXPORTING

• INSERT_ID = '000000'

• RELATIONSHIP = ' '

• LOG =

TABLES

NODETAB = node_tab

• EXCEPTIONS

• TREE_FAILURE = 1

• ID_NOT_FOUND = 2

• WRONG_RELATIONSHIP = 3

• OTHERS = 4

.

IF SY-SUBRC <> 0.

• MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO

• WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.

ENDIF.

CALL FUNCTION 'RS_TREE_LIST_DISPLAY'

EXPORTING

• CALLBACK_PROGRAM =

• CALLBACK_USER_COMMAND =

• CALLBACK_TEXT_DISPLAY =

• CALLBACK_MOREINFO_DISPLAY =

• CALLBACK_COLOR_DISPLAY =

• CALLBACK_TOP_OF_PAGE =

• CALLBACK_GUI_STATUS =

• CALLBACK_CONTEXT_MENU =

• STATUS = 'IMPLICIT'

• CHECK_DUPLICATE_NAME = '1'

• COLOR_OF_NODE = '4'

• COLOR_OF_MARK = '3'

• COLOR_OF_LINK = '1'

• COLOR_OF_MATCH = '5'

• LOWER_CASE_SENSITIVE = ' '

• MODIFICATION_LOG = ' '

• NODE_LENGTH = 30

• TEXT_LENGTH = 75

• TEXT_LENGTH1 = 0

• TEXT_LENGTH2 = 0

• RETURN_MARKED_SUBTREE = ' '

• SCREEN_START_COLUMN = 0

• SCREEN_START_LINE = 0

• SCREEN_END_COLUMN = 0

• SCREEN_END_LINE = 0

• SUPPRESS_NODE_OUTPUT = ' '

• LAYOUT_MODE = ' '

• USE_CONTROL = STREE_USE_LIST

USE_CONTROL = 'L'.

will get tree list!

but i want to carry out complex function for tree list.

the base function like RS_TREE_LIST_DISPLAY,but i can redefine create or delete functions.

some class object exist ?

some one can give me demo code!

thank you very much!