If I select two complete lines of text and hit Option then the caret also moves into the line below, which is not useful because I just wanted to add comments to the start of the selected two lines. Is this a bug or the way it's supposed to work?
it's supposed to work that way. you should start and stop selecting at the column you want the "multi-line caret" to be (start at the beginning of the first line and end at the beginning of the second line)
ciao,
d.
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(threading gets destroyed and the universe will collapse if you don't)