@jcastaneda, I already looked the Quicktags API but I wanted to know the best way to add a button which we could open a modal window (on the HTML and the Tiny MCE editor).
I know that the fusion builder plugin (by Avada) do the same thing. The button is on the TinyMCE toolbar and on the HTML editor.
I didn’t find relevant answer on the web,
Thank you for your help,
Maral Sabbagh