Install
This is the repository archive. It installs, but the folder name will carry the branch suffix and updates will not flow.
Install straight from GitHub with WP-CLI:
wp plugin install https://github.com/wordpressutilities/wputinymce/archive/refs/heads/master.zipNo built-in updater. New versions won't appear under Dashboard → Updates. Install new releases yourself, or let Git Updater track the repository.
WPU TinyMCE Buttons
Add new buttons to TinyMCE
How to install :
Put this folder to your wp-content/plugins/ folder.
Activate the plugin in "Plugins" admin section.
How to add buttons :