[Plugin: Display Last Post(s)] full list of post display arguments

I will hazard a guess at this.

Find this code in “display-last-post.php”

if ($cont != 'cont') { $retour.= get_the_excerpt().PHP_EOL; } else $retour.= fb_the_content().PHP_EOL;
$retour .= '<div class="author">'.get_the_author().'</div>'.PHP_EOL;
$retour.='</ul> ';
		endforeach;

and remove the excerpt and content sections, leaving just this:

if ($cont != 'cont') { $retour .= '<div class="author">'.get_the_author().'</div>'.PHP_EOL;
$retour.='</ul> ';
		endforeach;

I’ve not tested this one, so back up your “display-last-post.php” file content first so you can replace the exact content if it gives a temporary fatal error.

If this does not work, I use a different plugin to get the result you need. See https://abcdiamond.com.au for an example page using both types of options.