IF_@ REF_VALID Reference
...
END_IF_@
Reference = "Reference name"
@ = incremental number
Example:
IF_1 ELEM_NEW
CONFIG_ELEM
IF_11 REF_INVALID PROF_SIDE_FACE
SET_MDL_PARAM THIS WITH_PROF_SIDE_FACE 0
END_IF_11
IF_12 REF_VALID PROF_SIDE_FACE
SET_MDL_PARAM THIS WITH_PROF_SIDE_FACE 1
END_IF_12
REGEN_MDL THIS
END_IF_1