Hello liviu!
I don't know about binding up to two supplementary information from N1,N2,N3 for one teacher or all teachers. Do you have a simple example file you can send me for reference.
Thank you so much
Hello, ngo, please search the string "N1N2N3" in the official FET examples. There are some files with this constraint.
Thanks to Liviu for giving me a simple example, few teachers. The official file of FET has many teachers and classes, I can't read it
You can rename the teachers with Latin names.