http://zennolab.com/discussion/threads/vydelit-ctrl-a-kopirovat-ctrl-c-vstavit-ctrl-v-na-c.32667/
instance.ActiveTab.KeyEvent("a","press","ctrl");//выделяем текст
instance.ActiveTab.KeyEvent("c","press","ctrl");//копируем текст в буфер
project.Variables["text"].Value =...