Filter condition - Need help here

[QlikNoviceDeveloper]

Hi All,

Above is my dataset. now when i apply filter on Col6(list Box) let say value "33" the table shows 2 records . Cuz the col6 has 2 records in table. But instead i need 3 rows . i.e 2 rows matching value 33 and also the last  records if col4 is not null.

[qliksus]

Maybe something like

Sum(Col1) + Sum({<Col6={"=getselectedcount(Col6)>1"} ,Col4={"=max(Col4)"},Col6=>} Col1)