Hi there, I have few questions to ask.

First, is it impossible to TCP Server to send data only to clients I choose, not every client?
I need to send different data to different clients, but I noticed that TCP Server node seems that it has no pins to manipulate such operation.

Second, is there any way to access to core code of existing node, like editing dynamic plugins?

Thanks for reading and paying attention.
Every answer will be greatly appreciated and help me a lot!