Net send / Spark /unidirectional conversation

Hello team,

I would like to ask you a question.

Is there any chance to make a unidirectional conversation with Spark?

I will try to explain:

In our center we used to work using a communication tool based on “net send”, where a team Leader could send messages to any member of your team or to all members at the same time. but team members can not talk to each other, so avoid unwanted Chats.

Is there any possibility to do this with Spark? Some kind of configuration hierarchy?

Thank you very much everyone for your cooperation and sorry for the lack of my English.

You can try Packet Filter, but i can’t say whether it will work for you (recent similar request How can I restrict client messages? )