To process an incoming QSL card, I have to search for the QSOs first in QSL manager. Then:
1. open the QSO by doubleclick
2. switch to QSL tab
3. Select "QSL" from the dropdown
4. Check "Rcvd"
5. Klick checkbox in line "date"
6. Select "buerau" or "direct"
7. IMPORTANT - do not forget to klick on the floppy disk icon
8. Klick on the green checkmark
These eight (!) steps need to be repeated nor per card, but for every QSO on the card. That's just slightly above severe corporal punishment if you have to do it for a pile of received QSL cards....

Here my suggestion:
After searching for the callsign, I klick right on the QSO line and at the top of the context menu, there are four additional lines:
1. Received QSL card via buero, sender asked for QSL
2. Received QSL card via buero
3. Received QSL card via direct, sender asked for QSL
4. Received QSL card via direct
One right click per QSO on the QSL card and I'm done.
Would that change be possible?
Thanks in advance.
73 Christian DB9CR