Federico,
thanks for your reply. it is very helpful. I'm trying to compare 2 characteristics (Version and Soruce) in reference data. Any syntax for that? i tried both of the below options but with no luck.
for example {0AMOUNT,wmat,wcomp | 0VERSION = 'B' AND 0SOURCE = 'ACTUALS'}
or
{0AMOUNT,wmat,wcomp | 0VERSION = 'B' | 0SOURCE = 'ACTUALS'}