It would be very nice to be able to do a quick diff on 2 selected text blocks. e.g. Select text with mouse -> right click -> diff -> select second text block -> a then a small overly shows the diff between the two text blocks. or split view in left / right -> select text in both open documents ->right click -> diff both selected text blocks -> small overlay with diff between the two text blocks. This would be very helpful to see if small code blocks e.g. functions, templates, ... are identical and could be refactored into one.