I am migrating from tinyMCE 3.x to the latest version of tinyMCE 4.x. My problem is that I have dynamic generation of tinyMCE instances so in 3.x I was using:

tinymce.EditorManager.execCommand('mceAddControl', true, "content_txt");

but in version 4.x this doesn’t work. I started to check the documentation but I can’t find the identifiers for version 4.x