Typically, in successive sessions, the names of the same subjects are assigned to the same tags. TrackLab easily supports this by the ‘re-use subject names’ option (to the right side of the subject variables list). It is good practice to assign the correct subject names to the tags in the first session and select the re-use option, before starting the next sessions. In the next sessions, tags get assigned to the same subject names as in the previous session(s). For new tags IDs, a subject name remains equal to the assigned tag MAC-ID and is therefore not renamed.