Adding multiples of the same card....

I don’t know if I’m missing something here, but I had to add the same card multiple times, as I did not see any option when adding the card, to indicate how many of that particular card I have in my collection. For example, I have 5 1987 O-Pee-Chee #155 Nolan Ryan’s, entered separately because I didn’t see any way to add it once, and indicate there were 5.