I would like to add a tag structure through the Tinymce editor (eg: two column table with classes, div structure with classes, etc.).
This makes some operations simple for those unfamiliar with html.
I found this article on stackoverflow: link
Yup! it is possible with the TinyMCE plugin template.
In this example (file: tinymce.override.json) I have configured the plugin to insert a table structure with custom class and random image.
It is possible to configure more templates that are activated with the new button in the toolbar2.