Earlier quoted context omitted.
> no way to select a line Hmm yeah I never noticed that. Fastest way to select a line I know is: click at the start of the line, then Shift + down arrow.
Good one! It might select the first word of the next line in some cases, but it's easy to deselect it with the left arrow. Thank you!
Also, TIL that you can hold down CMD and drag over various words/letters on the screen, non-contiguous, then CMD-C copies them all to the clipboard. Must be handy for something!