Using radio group while creating server behavior

Please, help
This is what I'm doing:
1. Create new Server Behavior
2. Add a parametr (e.g. @@RadioGroup@@)
3. Setting it as Radio Group in Generate Behavior Dialog Box, that apears
after clicking OK in Server Behavior Builder
4. When I'm adding this Server Behavior to my code 2 radio buttons apear with
[label] mark

How can I change this [Label] to something friendly? Should I set the name of
Parametr in some special way?

Thanks for help