Andrew Ozz

This plugin adds 30 languages to <a href="https://wordpress.org/plugins/tinymce-advanced/" rel="ugc">TinyMCE Advanced</a>: 
Arabic (ar), Belarusian (be), Bokmål Norwegian (nb), Bulgarian (bg), Catalan (ca), Simplified Chinese (cn), Czech (cs), Danish (da), Dutch, Flemish (nl), Farsi (fa), Finnish (fi), Galician (gl), Greek (el), Hebrew (he), Hungarian (hu), Indonesian (id), Central Khmer (km), Korean (ko), Latvian (lv), Lithuanian (lt), Macedonian (mk), Norwegian (no), Polish (pl), Romanian (ro), Slovak (sk), Slovenian (sl), Swedish (sv), Turkish (tr), Ukrainian (uk), Welsh (cy).
If you have set WordPress to one of these languages and this plugin is enabled, the TinyMCE Advanced plugin will use that language for all buttons and popups added to the Visual editor.

TinyMCE Advanced Language Pack

Adds more translations for the TinyMCE components used in the TinyMCE Advanced plugin.

Dougal Campbell

On monitors with limited vertical resolution (often the case with laptops), the post/page editor can appear inconveniently far down on the page. With the WriteScroll plugin active, these pages will automatically scroll to an optimal position for editing, when you visit <code>Write Post</code> or <code>Write Page</code>.

WriteScroll

Automatically scroll Write Post and Write Page screens to the editor.

TinyMCE Advanced Language Pack vs WriteScroll