sending files and login to client

[Benedetto]

Hi, I tried to install Veyon at school on the teacher pc with the master part, and on the clients the client part all this works in a windows 10 environment on the local network.
On the other hand, from the professorship, the master does not understand why I cannot send files and logins to individual clients from the teacher's console, for example for opening PCs. Thanks for your help.