by Ernie » Wed Apr 07, 2021 4:15 am
Deck Options > Cards to Study
This is the intended way to study just a subset of cards. Are you creating your cards on your computer? What I would do is add a column for "Category 1". So you might have:
Text 1 | Text 2 | Category 1
question 1 | answer 2 | Fourier
| = tab or new column
Then in "cards to study" you can filter on select categories.
If you are doing this all in the app, you can go to card listing, and use the "Mode" button to enter multi-select, select a batch of cards, then Mode again to get option to "Set Category". You will need to add the category first before setting.
If you are looking for something else, let me know.