TinyMCE Template plugin will enable to use HTML template on WordPress Visual Editor.
You can send your own language pack to me.
How to display insert template button on wysiwyg editor of the ACF.
add_filter( ‘tinymce_templates_enable_media_buttons’, function(){
return true; // Displays insert template button on all visual editors
} );
This plug-in is not guaranteed though the user of WordPress can freely use this plug-in free of charge regardless of the purpose.
The author must acknowledge the thing that the operation guarantee and the support in this plug-in use are not done at all beforehand.
Download & install the zip archive
The plugin package installer can be downloaded from the WP2E project tab called “code”.
1 – Select the version to download if this option is available otherwise the “latest” version of the main plugin will be used.
2 – After downloading the zip archive install the plugin package installer in you local environment and activate the script from the plugin list.
3 – Under the section “Plugins” of the admin dashboard you should see a new “Dependencies & Licenses” link. Follow the instructions from this panel to finalize the installation of the missing dependencies.
Tips: Use the WP2E panel to add/suggest new dependencies to the local installation. Press F5 in the list of dependencies if the changes are not displayed right away.