icomplete provides a convenient way to quickly select an element<br>among the possible completions in a minibuffer.<br><br>It is enabled by calling (icomplete-mode 1)<br><br>Recently, icomplete-vertical-mode was added.  But calling<br>(icomplete-vertical-mode 1) does not enable vertical completion,<br>unless one has called (icomplete-mode 1) first.<br><br>It is more natural to simply enable the mode by calling<br>(icomplete-vertical-mode 1), the same way as one enables<br>icomplete.  Either call (icomplete-mode 1) or<br>(icomplete-vertical-mode 1) to activate icamplete with the<br>appropriate style.<br>