A filter option would be great, allowing you to filter between monsters from the new card system and those from the old card system. From time to time, I find an old card that I missed transferring to the new system. With over 2500 cards, I have to go through all of them manually to see if they have the transfer symbol. Being able to show only the old ones would save a lot of time and be a huge quality of life improvement.
Or an option to transfer them all at once.
Hello,
Such filters are here from long time. Go to zone dropdown and select either "Card Type > Old Card" or "New System Cards".
Greetings