mode

defines a mode of Chat

string mode;

"single"

displays only one chat

"limited"

disables the ability to add another chats

"full"

all the chats are displayed; ability to add another chats

webix.ui({
  view: "chat",
  mode: "limited", // disables the ability to add more chats
  token,
  url: "https://docs.webix.com/chat-backend/"
});

"full"