How to organize flashcards (e.g. mass re-categorize) using Windows Explorer

Hello, I'm a new user of Pleco and am trying to set up efficient study. I have an HSK 3.0 flashcard set which comes with its own category and sub-category for all the levels. I am trying to get rid of the Level 1 and 2 cards I already know. The quickest way to remove them from my SRS tests is to remove them from the category. I find for each card I have to long press, go to Remove from Category, and confirm, and am hoping for a faster way. I'm used to organizing files in Windows Explorer and would like to be able to do this for anything I do in Pleco in the future. Is there a way?
 
I tried looking through the file system and it doesn't look like it. But I found the Edit tab that lets me check multiple flashcards. Problem solved.
 
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