how can I limit functions for different users?
does radmin support multiple user management?
e.g. I want a special radmin viewer-user to use only e.g ftp and there he gets only editing rights for special folders
You should inspect Radmin's NT Security Permissions. On the PC is to be controlled remotely (and where RAdmin Server is installed) run "Settings for Remote Administrator server" from start menu group, press "Set password..." button, check "Enable NT Security" option, then press "Permissions" button. Now you should set permissions to achieve your tasks.
Famatech Technical Support