Yeah they are also named "jumping genes", this "jump" DNA sequences that move from one location on the genome to another is not how you seem to represent it...
Biologists were initially skeptical of McClintock's discovery. Over the next several decades, however, it became apparent that not only do TEs "jump," but they are also found in almost all organisms (both prokaryotes and eukaryotes) and typically in large numbers.
Today, scientists know that there are many different types of TEs, as well as a number of ways to categorize them. One of the more common divisions is between those TEs that require reverse transcription (i.e., the transcription of RNA into DNA) in order to transpose and those that do not.
Please these articles review, they should help you understand more about TEs.
Article Sleeping Beauty transposition: from biology to applications