Amazing application! Thank you!
In my school(my subject) I have about 400 pupils. If you implement a category of classes and questions it would be great!
For example. I have 4 classes of 7 and 8 th Grade. Each of them divided by 2. In total 16 groups. In each group they have similar questions. Perfect, if I get 7th grade groups(8 pcs) and add them question group for 7th grade and if I get 8th grade groups(8 pcs) and add them question group for 8th grade and etc.

Very thank you! You save my heath and life!
Russia, Pskov.