[WT-support] CW sending QRZ with the "+" key

[Tim Duffy K3LR]

A simple question, I may be overlooked the information. Dave and I are working
on CQWW CW setup just now.

I notice that WinTest does not use F3 and log the QSO when using the "+" key as
CT does.

I have F3 modified to send the TU QRZ message, but I cannot find a place to
modify the "+" key to use F3.
Alternate would be to modify the + key message which sends TU K3LR now, but we
want a different message there. How is the "+" sending message modified? Or can
the "+" key use F3 like CT with modifications?

Thanks and 73,
Tim K3LR