Forum OpenACS Development: Is it possible to have orderby for extended element in Multirow of listtemplate

Hi,
Logically speaking its an extended multirow element
which is not a column of original multirow query.
so orderby on extended column throws an error.

Is there anyway so that i can apply order by for
an extended column in multirow of list template.

My example looks like this :

list::Create \
- multitrow get_res \
- elements {
permitted_user_id

} -orderby {
permitted_user_id {
orderby permitted_user_id
default_direction desc
}
}
}

}

db_mutl.... get_res pingo {} {
set permitted_user_id $user_id
}

This throws an error .
If anyway is devised to apply orderby to extended column
of Multirow in list template . please post a reply to
this thread.

Any help is appreciated in this regard.

Regards,
Caops