Mondrian 4 Query with (Calculated)ColumnDef, possible?

Hi,
I am trying mondrian 4, I mainly have query elements in my physical schema, because I want to filter the data which gets retrieved.

When I check the schema documentation, and also it seems when I process the xml, it seems that ColumnDef/CalculatedColumnDef is not supported. Or in what way can I use (Calculated)ColumnDef in a Query element?

Thanks!

gr. Martin