Juri Linkov <juri@linkov.net> writes:

>> The mechanism used to make backtab in the minibuffer switch to the last
>> completion option is not that nice as it uses this-command and
>> this-command-keys.
>
> When completion-auto-select is not enabled, TAB scrolls the completions buffer
> forward.  So S-TAB (backtab) could scroll backward.
>
> When completion-auto-select will be enabled, backtab could switch to
> the completions as well, indeed.

How is this?