tinymce-docs-4x/plugins/layer.md

layout, title, title_nav, description, keywords

layout	title	title_nav	description	keywords
default	Layer Plugin	Layer	Adds some layer controls (only works on some browsers).	browser

This plugin adds some layer controls. It only works on some browsers and will probably be removed in the future.

Type: String

Example

tinymce.init({
  selector: "textarea",  // change this value according to your HTML
  plugins: "layer"
});