How to dynamically switch the language under the conf according to the English or Chinese written in student’s workbooks?
The second question is that, according to the question type, under the certain language resources, how do I dynamically switch the subset? Such as the first subset A to D, and the second subset is E to Z，At present，I did these steps in the picture，but I failed.。。
Regarding your first question, an answer has already been provided, see : https://developer-support.myscript.com/support/discussions/topics/16000024064
For your second question, you can't have multiple configurations at the same time on the engine.
It is then not possible to dynamically switch the subset.
Regarding your picture it should work.
Maybe can you send us more details then we can investigate.