Bex queries: multiple chars filtered in OR

Hi all,

I have the following problem in a list query result: the list should show rows selected by free chars filters adding subsequent subsets rather than subtracting.

Example:

list shows all customers.

as free chars filter i select: cust group=01 and cust area=north,center

instead of subsetting both criteria i would like to see all customers that:

belong to cust group=01 OR belong to cust area=north or south

ie. customers from both single subsets..

thanx all