The present disclosure relates to linking text boxes and features associated with linked text boxes. A user interface feature in a document authoring application program for creating text boxes may include a text box creation graphical menu item presented on a display of an electronic device. In response to receiving user input indicative of a selection of the text box graphical menu item, the application program is configured to cause the electronic device to render a text box that includes a bounding edge in the document on the display. Additionally, the user interface feature includes a selectable visual indicator displayed as an integral part of the text box. The selectable visual indicator is indicative of a thread of text boxes in which the text box is included.