Hello again, @nadar! I have installed the format plugin (from http://cdn.rawgit.com/stevermeister/ngWig/master/dist/plugins/formats.ngWig.min.js) and change the zaaWysiwyg directive and works. I also enabled the editing / visualization of source code, with the "source-mode-allowed" directive od the ngWig and also worked. The only problem is that the source code viewed does not come beautifully formatted. Do you have any idea how I can integrate this with js-beautify, for example?