Try...

SET RELA TO field_name INTO view_name IN parent_table ADDI

or

SELE parent_table
SET RELA TO field_name INTO view_name ADDI


>that didnt work too well, lets try again
>
>SELE view_name
>INDEX ON field_name TAG tag_name
>SET ORDER TO tag_name
>SET RELATION TO parent_table.field_name INTO view_name ADDITIVE
>
>there we go.. this is a bit more what my code looks like