[Dx4win] How to select QSL for printing?

[sm0mpv]

I do participate in several contests and I think that the
final courtesy of a QSO is a QSL card. However after a
rather short time you end up with sending a lot of QSL cards
to the same stations. Is there an easy way to select those
contacts for a certain station that is not confirmed either
as mode or band? Let’s say I have worked K3ZO on 80, 40
and 20m. I have got QSL cards on 80 and 20 but not on 40m.
Is there a way to select all similar contacts that has not
been confirmed from a new bunch of contacts e.g. when
printing cards from a contest and not print those that are
all ready confirmed.

I am not sure I have expressed my self acceptably clear so I
try to rephrase. When I after a contest should send cards I
would like to send cards for all contacts with a specific
station that I not have got a confirmation on the specific
mode or/and band. Is that possible to do in some other way
than select them one by one?

73 de Mel - SM0MPV
8S0C contest call