"Human" names of the visitors
For visitors, that I set name during the chat - the name presented instead if "V1449230376550663".
Now I see all visitors in history like V1449230376550663 - it's very hard to find specific chat.
I set Visitor Name for some chats in history - to easily find him later. But in history they to still presented like V1449230376550663. Not with user-defined "Visitor Name"