My old callsign

[K0AY]

In looking at some old QSO cards, I realized that I had no DXCC credit for Czechoslovakia. I have cards from 1990 when I was using my old call sign. How do I enter these QSOs in my log using my old callsign?

[G4POP]

In option/station info change to your old call and location if that was different

Enter the old QSO's

Now revert to your new call sign and location in options/station info

All the entries for the old cards will be recorded with the old information