Subject: bug#57423: Completions Buffer requiring window switching or mouse activity

From: [email-masked]
Date: Fri, 26 Aug 2022 03:18:58 +0200 (CEST)

Using  "M-x COMMAND TAB"  to display minibuffer commands, one gets a 
temporary Completions Buffer that says

Click on a completion to select it

Consequently, one cannot complete or go through the possibilities in the minibuffer, 
but am being forced to either switch to it with "C-x o" a couple of times, or having
 to use the mouse.

An effective way that improves the frequent minibuffer activity (e.g. icomplete lets user
select a completion without having to smitch windows), emacs can automatically switch
to the completions buffer so one can get to a possible selection using the arrow keys.