A picture is worth a thousand words :
In Rietveld web diff tool I want to copy code from one of the buffer, but text selection with the mouse spreads over the other buffer when selecting multiple lines.
I wish I could draw a rectangle on screen and all text contained in that bounding box be pasted in my clipboard. Is there an extension for that ?
Here is the kind of result I'd like to achieve, say I want to copy the right buffer :