Masahiro NAKASHIMA

This plugin can change bottom to “Admin Bar”. 
It also can change Admin Bar position with “shift + up” or “shift + down”.
管理バーの位置を下に表示することが出来ます。 
また、「Shift + ↑」「Shift + ↓」で上下に位置を変えることも可能です。

Admin Bar Position

Thanks. It is very usefull!

If you ok, please update something.
Because plugin page displayed caution message.ｈ

Nice tiny function! Thanks

Hover on native button are not working at all..
Instead use this updated and working plugin :

https://wordpress.org/plugins/bottom-admin-toolbar/

Buggy extension

This plugin can change bottom to "Admin Bar".

Maria Daniel Deepak

WP Categories Metabox Extended extends the Category metabox on your WordPress editor. Once installed the Category metabox gets a search bar with which you search Categories. Also, this is only seen on “Add New Post” screen in the WordPress Admin dashboard.
From <a href="https://wordpress.org/support/wordpress-version/version-5-0/" rel="ugc">WordPress 5.0</a>, the search bar is included with the Categories metabox. In case you choose to use the Classic editor by using plugins like <a href="https://wordpress.org/plugins/disable-gutenberg/" rel="ugc">Disable Gutenberg</a>, then WP Categories Metabox Extended plugin will continue to extend the Categories metabox for the default “Post” post type.

WP Categories Metabox Extended

WP Categories Metabox Extended plugin allows you to search and assign Categories to your post in your WordPress editor.

Admin Bar Position vs WP Categories Metabox Extended