The inventive system and method are directed to novel embodiments of various tools and infrastructures that enable a user of a document viewed on a data processing system using a document handling application, to engage in at least one additional concurrent data navigation/interaction activity in the document, and/or in the application handling the document, without affecting the user's document interaction activities. In the preferred embodiment of the invention the inventive system and method are implemented by enabling the handling application to present the document along with at least one Independent Data Interaction/Navigation Element (IDINE), that includes a display component for displaying and optionally enabling interaction with any data (content) provided thereto, and a control component for navigating the provided content. Advantageously, the novel system and method ensure that utilizing any particular IDINE to navigate content provided thereto, does not affect the user's ability to navigate or interact with content in the document, or in other IDINEs (if any are present). The system and method of the present invention also provide a number of novel techniques for implementing and modifying IDINEs, and also provide multiple advantageous IDINE-related infrastructures, having additional benefits to parties involved in IDINE use, implementation, and content provision thereto.