+1
Pinned(binded) mode
Pin window to another window or it's child window. And hide all window borders in this mode. Text editor will like it embedded in application it pinned. I think this could be gread feature.
Feature like this is present in Notepad++ but it does not follow parent. It just pin to screen.
Сервис поддержки клиентов работает на платформе UserEcho