relations repeat region

[wildmodeler]

I have a challenge. I have a repeat region with 2 columns 1 reports sheet_no parameter the other reports zone parameter. I want 1 of the find numbers to report something else.
I tried this relation it didnt work:

IF asm_mbr_fn == "201"
rpt_rel_sheet = "zz"
ELSE
rpt_rel_sheet = "asm.mbr.sheet_no"

IF asm_mbr_fn == "201"
rpt_rel_zone = "ss"
ELSE
rpt_rel_zone = "asm.mbr.zone"

ENDIF
ENDIF

Any ideas?