我知道这是一个老问题，但更新后的答案似乎仍与给出相关。

最初的答案可能是当时最好的选择，但它没有检查帖子类型是否支持更改作者并适合元框样式。

主要PHP

add_action(\'admin_menu\', function (): void {
    $type = getCurrentPostType();
    if ($type) {
        remove_meta_box(\'authordiv\', $type, \'normal\');
    }
});

add_action(\'post_submitbox_misc_actions\', function (): void {
    global $post, $user_ID;

    if (!empty($post)) {
        $supportsAuthor = post_type_supports($post->post_type, \'author\');

        if ($supportsAuthor) {
            $userId = empty($post->ID) ? $user_ID : $post->post_author;
            $user = get_userdata($userId);
            echo \'... fetch some template here\';
        }
    }
});

function getCurrentPostType(): ?string {
    // https://gist.github.com/bradvin/1980309
    global $post, $typenow, $current_screen;

    if ($post && $post->post_type) {
        return $post->post_type;
    } elseif ($typenow) {
        return $typenow;
    } elseif ($current_screen && $current_screen->post_type) {
        return $current_screen->post_type;
    } elseif (isset($_REQUEST[\'post_type\'])) {
        return sanitize_key($_REQUEST[\'post_type\']);
    } elseif (isset($_REQUEST[\'post\'])) {
        $p = get_post($_REQUEST[\'post\']);
        if ($p) {
            return $p->post_type;
        }
    }

    // Unknown
    return null;
}

<div class="misc-pub-section misc-pub-author" id="author">
    <?=sprintf(__(\'Author: %s\', \'aym\'), "<b>{$user->display_name}</b>")?>
    <a href="#author" class="edit-author hide-if-no-js" role="button" aria-label=\'<?=__(\'Edit author\', \'aym\')?>\'>
        <?=__(\'Edit\', \'aym\')?>
    </a>

    <div id="post-author-select" class="hide-if-js" style="display: none;">
        <?php post_author_meta_box($post)?>

        <p>
            <a href="#author" class="save-post-author hide-if-no-js button">OK</a>
            <a href="#author" class="cancel-post-author hide-if-no-js button-cancel">Cancel</a>
        </p>
    </div>
</div>

(function($) {
    // Author select in admin edit sidebar
    var $baseEl = $(\'#author\');
    var $select = $(\'select\', $baseEl);
    var $form   = $(\'#post-author-select\', $baseEl);
    var previousValue = $select.val();
    $(\'a[href="#author"]\', $baseEl).on(\'click\', function(e) {
        e.preventDefault();
        $form.slideToggle(300);
    });

    $(\'.save-post-author\', $baseEl).on(\'click\', function(e) {
        e.preventDefault();
        previousValue = $select.val();
        $(\'b\', $baseEl).text($("option:selected", $select).text());
        $form.slideUp(300);
    });

    $(\'.cancel-post-author\', $baseEl).on(\'click\', function(e) {
        e.preventDefault();
        $select.val(previousValue);
        $form.slideUp(300);
    });
})(jQuery);

.misc-pub-author::before {
    content: "\\f110";
    color: #82878c;
    font: normal 20px/1 dashicons;
    speak: none;
    display: inline-block;
    margin-left: -1px;
    padding-right: 3px;
    vertical-align: top;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

#post-author-select {
    padding-top: 5px;
}

#post-author-select select {
    width: 100%;
}

或者使用插件Adminimize通过选项对此进行自定义