[plt-scheme] What does the toggle anchor key command do?

AKA shift-lock? (at least for a typical Windows style app, though I
just made that 'shift-lock' feature up)

On 8/3/07, Robby Findler <robby at cs.uchicago.edu> wrote:
> Do you see the words "auto-extend" appear the bottom of the screen? Try this:
>
>   a b c control-space left left
>
> Robby
>
> On 7/29/07, Grant Rettke <grettke at acm.org> wrote:
> > What does the toggle anchor key command do?
> >
> > In my current layout it does nothing.
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