Markhoeber/documentation/stud 1260

See draft documentation at:  http://draft-nested-components.readthedocs.org/en/latest/organizing_course.html#nested-components
@srpearce the image does show a drop down list. There's no Add button or Remove button. (See the HTML at http://draft-nested-components.readthedocs.org/en/latest/creating_content/content_experiments.html#change-the-group-configuration-for-a-content-experiment)