COPY, PASTE, ...

   There are some basic operations with clipboard, which I didn't document earlier. When you are in editing mode in subtitles line grid (you can see blinking cursor as vertical line |), you can perform actions like copy (Ctrl+C), Paste (Ctrl+V), Cut (Ctrl+X) and Undo (Ctrl+Z). Undo only works if you do not leave current cell (Thus when you move to other cell and want to undo last editing in previous cell, it's not possible, but when you overwrite some text in cell you can undo by Ctrl+Z).