This example shows a Bootstrap Modal. Note 1: you need Bootstrap & Bootstrap Modal for this example. Download it from here: http://getbootstrap.com/javascript/#modals Copy the JS- and CSS-file into your fileadmin-folder! Or better: install a Bootstrap extension and you are done! Note 2: if you want to copy this HTML-file to your fileadmin-folder, you can specifty the folder like this: plugin.tx_camaliga.view.templateRootPath = fileadmin/template/files/ Copy this file in a subfolder named "Content" of this folder. Note 3: use the field "custom1" for the modal-button/link.