朱真明
进士
As I go through reading my first book in Chinese, I add every unknown vocabulary into a flashcard group with the same title as the book. Once I had reached enough flashcards I started to create sub-groups in order to separate the large amount into more manageable ones. Here's the problem, every time I tried to add a flashcard that I already had Pleco would tell me, but now that I have the sub-groups it will not differentiate between the whole group and the sub-groups. That is, every card I have in the sub-group will not be considered as part of the whole group so Pleco won't tell me that I already have that specific vocabulary in the sub-group. Any way to deal with this conundrum?