Hi,
Please try the FM
t_sel type standard table of rsparams
v_repid type sy-repid.
v_repid = sy-repid.
call function 'RS_REFRESH_FROM_SELECTOPTIONS'
exporting
curr_report = v_repid
tables
selection_table = t_sel
exceptions
not_found = 1
no_report = 2
others = 3.
when 'BACK'.
submit v_repid with selection-table t_sel via selection-screen.
Hope it helps.
Regards,
K.S